**[Near-Earth Asteroid Rendezvous Project]{.smallcaps}**

**[Archive Generation, Validation, and]{.smallcaps}**

**[Transfer Plan]{.smallcaps}**

Prepared by:

D. Davis and C. Neese

Planetary Science Institute

620 North Sixth Avenue

Tucson, Arizona 85705-8331

E. Grayzeck

University of Maryland

College Park, Maryland 20742

D. Holland

Science Data Center Manager

NEAR Project

February 14, 1998

**[Near-Earth Asteroid Rendezvous Project]{.smallcaps}**

**[Archive Generation, Validation, and]{.smallcaps}**

**[Transfer Plan]{.smallcaps}**

Approved by:

+---------------------+----------+---+---------------------+----------+
| M.H. Acuña          | Date     |   | J.I. Trombka        | Date     |
|                     |          |   |                     |          |
| Team Leader, MAG    |          |   | Team Leader, XGRS   |          |
+---------------------+----------+---+---------------------+----------+
| M. F. A\'Hearn      | Date     |   | J. Veverka          | Date     |
|                     |          |   |                     |          |
| Node Manager        |          |   | Team Leader,        |          |
|                     |          |   | MSI-VIS             |          |
| Small Bodies Node,  |          |   |                     |          |
| PDS                 |          |   |                     |          |
+---------------------+----------+---+---------------------+----------+
| T. Morgan           | Date     |   | D.K. Yeomans        | Date     |
|                     |          |   |                     |          |
| NEAR Program        |          |   | Team Leader, RS     |          |
| Scientist           |          |   |                     |          |
+---------------------+----------+---+---------------------+----------+
| A.F. Cheng          | Date     |   | M.T. Zuber          | Date     |
|                     |          |   |                     |          |
| NEAR Project        |          |   | Team Leader, NLR    |          |
| Scientist           |          |   |                     |          |
+---------------------+----------+---+---------------------+----------+
| S. McMahon          | Date     |   | T. Coughlin         | Date     |
|                     |          |   |                     |          |
| Project Manager     |          |   | NEAR Project        |          |
|                     |          |   | Manager             |          |
| Planetary Data      |          |   |                     |          |
| System              |          |   |                     |          |
+---------------------+----------+---+---------------------+----------+

**CHANGE PAGE**

**[TABLE OF CONTENTS]{.smallcaps}**

**[1.0 Introduction]{.smallcaps}**

**[2.0 Overview of NEAR Mission]{.smallcaps}**

[2.1 Mission Overview]{.smallcaps}

[2.2 Ground Data System]{.smallcaps}

**[3.0 Archiving Functions]{.smallcaps}**

[3.1 Overview of the Archiving Functions]{.smallcaps}

[3.2 Archive Design]{.smallcaps}

[3.3 Generation of Archive]{.smallcaps}

[3.4 Validation of Archive]{.smallcaps}

[3.5 Further Information]{.smallcaps}

**[4.0 Roles and Responsibilities]{.smallcaps}**

[4.1 Responsibilities of the NEAR Project]{.smallcaps}

[4.2 Responsibilities of the PDS]{.smallcaps}

[4.3 Responsibilities of NSSDC]{.smallcaps}

**[5.0 NEAR Archive Structure]{.smallcaps}**

[5.1 Overview of the Archive Structure]{.smallcaps}

[5.2 The Volume Documentation Files]{.smallcaps}

[5.3 The Data Set Collections]{.smallcaps}

**[6.0 Schedule for Generation, Validation, and Delivery]{.smallcaps}**

**[7.0 NEAR Data Release Policy]{.smallcaps}**

**Appendix A NEAR Science Data Products**

**Appendix B Glossary of Terms and Acronyms**

**Appendix C Data Level Definitions**

**Appendix D NEAR Project Data Policy**

**1. Introduction.**

This document defines the process of archiving data from the NEAR
mission with the Planetary Data System (PDS), including the design,
generation, validation, and transfer of the data archive to PDS. The
archive will include raw and reduced data, navigation data necessary for
the interpretation of the data, documentation, and software.

Section 2 gives an overview of the NEAR mission including the Ground
Data System by means of which the data stream will be converted into
science data products. Section 3 provides an overview of the steps
necessary to produce the NEAR data archive, while Section 4 specifies
the roles of each of the participants in the archiving process, and
assigns responsibility for each of the archiving functions. Section 5
outlines the upper‑level structure of the archive itself. Details of the
archive structure down to the file level will be determined later as
information about the data products from each instrument becomes
available, and will be specified in the Software Interface Specification
(SIS) documents. Section 6 provides the schedule for data archiving, and
section 7 specifies the data release policy for the NEAR mission.

For reference, a list of the NEAR science data products expected from
each instrument, a glossary of acronyms used in this document, and the
data level definitions are given in the appendices.

**2. Overview of the NEAR Mission.**

*2.1 Mission Overview*

The Near Earth Asteroid Rendezvous (NEAR) spacecraft was launched on
February 17, 1996, and is planned to rendezvous with the S‑class
near‑earth asteroid 433 Eros. First detection of Eros by the NEAR
instruments is expected to occur in the fall of 1998, and rendezvous
maneuvers will begin on January 10, 1999, with the initial close
approach to Eros. NEAR will remain in orbit to study the asteroid for
the rest of the nominal mission which will end on February 6, 2000.
Prior to reaching 433 Eros, NEAR will fly within 1200 km of the C‑class
main‑belt asteroid 253 Mathilde on June 27, 1997.

The instruments aboard NEAR include the Multispectral Imager (MSI), the
Near Infrared Spectrometer (NIS), the X‑ray/Gamma‑ray Spectrometer
(XGRS), the Magnetometer (MAG), and the NEAR Laser Rangefinder (NLR). In
addition, the Radio Science (RS) experiment will use the NEAR telemetry
system to determine the mass and gravity field of the asteroid.

*2.2 Ground Data System*

The NEAR Ground Data System is the mechanism by which the raw spacecraft
data stream will be converted to science data products. The Mission
Operations Center (MOC), located at APL, will be responsible for
monitoring the status of the spacecraft and payloads, commanding the
spacecraft and payloads, and coordinating real‑time mission planning.
The MOC will receive telemetry packets from DSN and process them to
level 0 through 0b, providing the level 0b data to the Science Data
Center (SDC).

The Science Data Center (SDC), also at APL, will support the processing,
analysis, and archiving of the science data. In particular, the SDC will
support the Science Teams, providing easy access to all the data
required by the teams, and coordinating archival of products produced by
the teams to the Planetary Data System.

The SDC will accept and process telemetry, command history, and
navigation data, creating the Experiment Data Records (EDRs),
calibration files, and telemetry archive. Also, the SDC will coordinate
with Mission Operations to collect science sequence priorities from the
Science Teams, and will coordinate with JPL to develop the asteroid
kinematics model, gravity model, and shape model.

**3. Archiving Functions.**

*3.1 Overview of the Archiving Functions*

The archive will contain science data products from each of the
instruments, navigation and geometry data from the SPICE kernels,
software, and sufficient documentation of the data, software, and
mission to enable future scientists to understand and use the archive.
To produce this archive, a number of steps need to be carried out,
including design of the archive structure and contents, generation of
the archive components, validation, and final packaging and delivery.
The science data products form the core of the archive, and a list of
the expected data products from each of the instruments is given in
Appendix A.

*3.2 Archive Design*

The dataset to be archived from the NEAR project is expected to be
several tens of GB in size. The archive will be delivered using CDs or
digital versatile disks (DVDs), as appropriate. The data will be ordered
by time first, then by instrument, and further divided by type of data,
if relevant. Figure 1 illustrates the structure of a typical volume of
the archive. Data types and volumes for each instrument and archive
component and for the total archive are shown in Table 1. The details of
what components are included in the archive and how they are grouped
into data sets, subdirectories, and files comprises the design of the
archive. The upper level structure and contents of the archive are
described in more detail in Section 5. The arrangement of the final
details of the archive down to the file level will not be specified
until more detailed information on the data products and other
components are available. When the final detailed structure of the
archive is established, it will be recorded in Software Interface
Specification (SIS) documents.

Figure 1

+-----------------+-------------------------------------+--------------+
| **Table 1**     |                                     |              |
|                 |                                     |              |
| **Data Volumes  |                                     |              |
| for Archive     |                                     |              |
| Components**    |                                     |              |
+-----------------+-------------------------------------+--------------+
| **Archive       | **Data Type**                       | **Data       |
| Component**     |                                     | Volume**     |
|                 |                                     |              |
|                 |                                     | **(MB)**     |
+-----------------+-------------------------------------+--------------+
| MSI             | Raw Images                          |              |
|                 |                                     |              |
|                 | Mosaicked Images                    |              |
|                 |                                     |              |
|                 | Calibrations                        |              |
|                 |                                     |              |
|                 | Shape Data                          |              |
|                 |                                     |              |
|                 | Support Data                        |              |
+-----------------+-------------------------------------+--------------+
| NIS             | Raw Spectra                         |              |
|                 |                                     |              |
|                 | Calibrations                        |              |
|                 |                                     |              |
|                 | Calibrated Spectra                  |              |
|                 |                                     |              |
|                 | Image Cubes                         |              |
+-----------------+-------------------------------------+--------------+
| XGRS            | Raw Data File                       |              |
|                 |                                     |              |
|                 | X‑ray Maps                          |              |
|                 |                                     |              |
|                 | Gamma‑Ray Maps                      |              |
|                 |                                     |              |
|                 | Elemental Composition Maps          |              |
+-----------------+-------------------------------------+--------------+
| RS              | Raw Data (Doppler vs. Time)         |              |
|                 |                                     |              |
|                 | Doppler Residuals                   |              |
|                 |                                     |              |
|                 | Gravity Maps                        |              |
|                 |                                     |              |
|                 | Other                               |              |
+-----------------+-------------------------------------+--------------+
| NLR             | Raw Time Tagged Data                |              |
|                 |                                     |              |
|                 | Altimetry Data Products             |              |
|                 |                                     |              |
|                 | Gravity and Dynamics                |              |
+-----------------+-------------------------------------+--------------+
| MAG             | Uncorrected B Components vs. Time   |              |
|                 |                                     |              |
|                 | B(t) Time Series                    |              |
|                 |                                     |              |
|                 | Calibrated Spherical Harmonic       |              |
|                 | Models                              |              |
+-----------------+-------------------------------------+--------------+
| MERGE           | Shape models                        |              |
+-----------------+-------------------------------------+--------------+
| Navigation      | Mission History File - Mission Wide |              |
|                 |                                     |              |
|                 | SPICE Kernels                       |              |
+-----------------+-------------------------------------+--------------+
| Software        | Calibration Algorithms              |              |
|                 |                                     |              |
|                 | Higher Level Software (as provided  |              |
|                 | by Science Team)                    |              |
+-----------------+-------------------------------------+--------------+
| Documentation   |                                     |              |
+-----------------+-------------------------------------+--------------+
| Total archive   |                                     | 50-100 GB   |
+-----------------+-------------------------------------+--------------+

*3.3 Generation of the Archive*

Responsibility for generating archive components is specified in Section
4. Science data products will be generated in PDS‑compatible formats.
This requires that each data file (data table or image file) be in a
format approved by PDS and be accompanied by a PDS \"label\", actually a
detached descriptive header file describing formally the content and
structure of the accompanying data file. Navigation and geometry data
necessary to interpret the data (e.g. spacecraft ephemeris and attitude
records, command histories, and spacecraft housekeeping files) will be
extracted from the SPICE kernels and provided as ancillary archive
components. The source code of all software to be provided with the
archive will be collected and documented. In addition, files documenting
the archive components will be prepared by the parties generating the
data. In general, all information necessary to interpret and use the
data are to be included in the archive.

The PDS provides for the documentation of the mission, spacecraft,
instruments, and data products with special documenting files called
\"catalog objects\". Since the catalog objects take the form of a
template which must be filled out with prescribed information, they are
also (misleadingly) referred to as \"templates\" even when they are
already filled out. The required templates are the mission template,
describing the NEAR mission as a whole, the \"instrument host template\"
describing the spacecraft, one instrument template for each instrument,
and one data set template for each data set. These templates should
contain all information necessary to document the archive, and ideally
should make it possible for scientists to make correct use of the data
in the distant future when the mission personnel are not available to
support them. The PDS will fill in the formal portions of the catalog
objects, requiring only text descriptions of the mission, spacecraft,
instruments, and data sets from NEAR.

*3.4 Validation of the Archive*

Data validation falls into two types, validation of the data itself and
validation of the compliance of the archive with PDS archiving
requirements. The first type of validation will be carried out by the
Science Teams, and the second will be overseen by the PDS, in
coordination with the teams and the SDC. The delivery schedule of four
separate delivery dates for different portions of the mission will
facilitate validation by insuring that problems in the early deliveries
are resolved by the time of the later deliveries and the final archive.

The formal validation of data content, adequacy of documentation, and
adherence to PDS archiving standards is finalized with an external peer
review. The peer review will be coordinated by the PDS. The peer review
process may result in \"liens\", actions recommended by the reviewers or
by PDS personnel to correct the archive. All liens must be resolved by
the dataset provider: the SDC for level 1b and calibration data, the
science teams for higher level data products and calibration algorithms.
Once the liens are cleared, PDS will do a final validation prior to
packaging and delivery.

*3.5 Final Packaging and Delivery*

The data delivery will take place in four stages, as specified in the
timeline in Figure 2. Each subsidiary delivery will be made to PDS on a
hard medium such CD-ROMS. The final data delivery will incorporate the
entire archive, including the earlier data deliveries.

Figure 2

*3.6 Further Information*

An introduction to PDS archiving is available at
http://pds.sbn.astro.umd.edu. More detailed information on data
archiving in the PDS can be found in the PDS Data Preparation Workbook
(DPW) and in the PDS Standards Reference (SR).

**4. Roles and Responsibilities.**

This section describes the roles and responsibilities of the personnel
and organizations involved in generating, validating, transferring and
distributing the NEAR archive. The NEAR project and NEAR science teams
are responsible for archive generation and validation; the Planetary
Data System (PDS) has the responsibility of ensuring that the archive
meets PDS standards (including peer review of the data), advising the
project and science teams on archive related issues, maintaining active
archives of NEAR products for access by the science community and being
the interface with NSSDC for \"deep archiving\" of NEAR data.

*4.1 Responsibilities of the NEAR Project*

The NEAR archive consists of products generated by the NEAR project and
by the individual science teams. The Project Science Team has the
overall responsibility of setting observing priorities for the
spacecraft instruments in order to meet the fundamental science goals of
the NEAR project. The ensemble data from these observations constitute
the raw science data, the fundamental element of the archive.

> a\) Science Data Center
>
> The SDC is responsible for generating and validating the level 1b
> science data files, calibration files, spacecraft ephemeris and
> spacecraft attitude records, a history of all commands and spacecraft
> housekeeping files, the asteroid shape and kinematic models, and the
> source code and associated documentation of software used to generate
> the data products. The software is quite important so that a future
> user can redo the calibration without recourse to the science teams.
>
> The SDC will prepare the Software Interface Specification (SIS)
> documents, which are an invaluable documentation of the archive
> structure and content both for internal use and for future users of
> the archive.
>
> The SDC is also responsible for clearing all liens generated by the
> review process on products produced by the SDC.
>
> b\) Science Teams
>
> The team leader of each science team is responsible for delivering to
> the SDC a complete and validated archive of all files necessary for
> final data calibration, and all higher level data products (levels 2
> and 3) produced by the team, along with source code for software and
> associated documentation.
>
> The team leader of each science team is also responsible for clearing
> all liens generated by the review process on products produced by
> his/her team.
>
> c\) Archive Production
>
> The NEAR project has the responsibility of producing (premastering of
> CD‑ROMS) the final archive volumes and distributing these volumes to
> the NEAR community.

*4.2 Responsibilities of the PDS*

The Small Bodies Node (SBN) is the lead node for interfacing with the
NEAR mission and will be supported by the PPI node (magnetometer data),
radio science subnode (radio science data), imaging node (imaging data),
and NAIF node (SPICE data). Specific functions of PDS are:

> a\) Archive Generation Activity: Support the generation of the archive
> by advising the project/science teams on PDS archive standards,
> requirements and documentation needs. PDS/SBN will also support the
> data validation activity to ensure that the formal peer review
> process, a requirement for data ingestion into PDS, proceeds with a
> minimum of problems.
>
> b\) Conduct a formal peer review of the archive. This is a PDS
> mandated step before any data can be ingested into PDS.
>
> c\) Offer support to NEAR Project Science Teams and SDC in the
> resolution of liens that arise in the course of the peer review.
>
> d\) Produce archive volumes for distribution to the NASA supported
> science community.
>
> e\) Provide the data archive volumes to NSSDC.

*4.3 Responsibilities of NSSDC*

NSSDC is responsible for \"deep\" archiving of NEAR data for long-term
preservation and for filling large data orders to the science community
per the Memorandum of Understanding, dated January 13, 1994, between the
PDS and NSSDC.

**5. NEAR Archive Structure.**

*5.1 Overview of the Archive Structure*

The NEAR archive will be broken down into data set collections, one for
each instrument and one for data sets deriving from more than one
instrument (the MERGE data set collection). A typical volume will
contain data from a specified time interval. The top level directory of
a volume will thus contain directories for each of the data set
collections and directories for each of the additional components of the
archive, as required by PDS. The directories in the top level directory
of the volume are given in Table 2.

+----------------+-----------------------------------------------------+
| **Table 2**    |                                                     |
|                |                                                     |
| **Top-Level    |                                                     |
| Components of  |                                                     |
| a NEAR Archive |                                                     |
| Volume**       |                                                     |
+----------------+-----------------------------------------------------+
| *              | **Contents**                                        |
| *Directories** |                                                     |
+----------------+-----------------------------------------------------+
| DOCUMENT       | Text files serving as documentation for the         |
|                | archive.                                            |
+----------------+-----------------------------------------------------+
| CATALOG        | The catalog objects (templates) required by PDS to  |
|                | document the mission, spacecraft, instruments, and  |
|                | data sets.                                          |
+----------------+-----------------------------------------------------+
| SOFTWARE       | Software to be included with the archive.           |
+----------------+-----------------------------------------------------+
| CALIB          | Calibration files. Calibrations may also be         |
|                | included within individual data sets.               |
+----------------+-----------------------------------------------------+
| GEOMETRY       | Data necessary to describe the observing geometry,  |
|                | such as spice kernels.                              |
+----------------+-----------------------------------------------------+
| INDEX          | Index files to enable the user to find the data of  |
|                | interest.                                           |
+----------------+-----------------------------------------------------+
| MSI            | The MSI data set collection.                        |
+----------------+-----------------------------------------------------+
| NIS            | The NIS data set collection.                        |
+----------------+-----------------------------------------------------+
| XGRS           | The XGRS data set collection.                       |
+----------------+-----------------------------------------------------+
| MAG            | The magnetometer data set collection.               |
+----------------+-----------------------------------------------------+
| NLR            | The NLR data set collection.                        |
+----------------+-----------------------------------------------------+
| RS             | The radio science data set collection.              |
+----------------+-----------------------------------------------------+
| MERGE          | The collection of data sets originating from more   |
|                | than one instrument.                                |
+----------------+-----------------------------------------------------+

*5.2 The Volume Documentation Files*

PDS requires a number of volume documentation files for each archive
volume, including aareadme.txt, a text file describing the contents of
the volume, and voldesc.cat, a machine‑readable file with a catalog of
all the files residing on the volume. Each of the directories under the
top level directory also requires one or more volume documentation files
to document the contents of that directory. The details of these files
are specified in the PDS Standards Reference.

*5.3 The Data Set Collections*

The list of expected data products from each of the NEAR instruments, as
provided by the science teams at the May 1995 Science Team Meeting, is
given in Appendix A. The data products from each instrument will
comprise a data set collection, and within each of these data set
collections, the individual data products will be grouped into data
sets. As an example, a suggested grouping of the MSI data products into
data sets is presented in Table 3. Similarly, the data products from
each of the other instruments will also be grouped into data sets.

+--------------------+-------------------------------------------------+
| **Table 3**        |                                                 |
|                    |                                                 |
| **The MSI Data Set |                                                 |
| Collection**       |                                                 |
+--------------------+-------------------------------------------------+
| **Data Sets**      | **Data Products**                               |
+--------------------+-------------------------------------------------+
| Raw images         | Raw images                                      |
+--------------------+-------------------------------------------------+
| Calibration files  | Calibration files                               |
+--------------------+-------------------------------------------------+
| Mosaicked images   | Global color map                                |
|                    |                                                 |
|                    | Global B/W map                                  |
|                    |                                                 |
|                    | Regional high‑res maps                          |
+--------------------+-------------------------------------------------+
| Shape data         | Control point network                           |
|                    |                                                 |
|                    | Shape model (1x1 degree, resolution 20m)       |
|                    |                                                 |
|                    | Grid overlays for selected images               |
|                    |                                                 |
|                    | Global digital image mosaic (6m/pix) with       |
|                    | topographic overlay (8pix/deg)                  |
+--------------------+-------------------------------------------------+
| Support data       | Mission history file                            |
|                    |                                                 |
|                    | Updated pointing for all images                 |
|                    |                                                 |
|                    | Improved rotational elements                    |
+--------------------+-------------------------------------------------+

**6. Schedule for Archive Generation, Validation, and Delivery.**

The principal archive elements, namely the science data products defined
in Appendix A, will be generated during the course of the mission, as
will many ancillary products such as SPICE files. The general guideline
for Discovery missions is that they deliver data and calibration files
to PDS at six-month intervals.

The timeline for archive delivery to PDS is shown in Figure 2. The final
archive delivery is to be made 90 days after the end of the nominal
mission in order to allow time for PDS review and lien resolution before
the end of SDC operations. There are three additional PDS data delivery
dates planned: Mathilde encounter data (December 31, 1997, six months
after the encounter); Earth encounter data (August, 1998, six months
after Earth encounter); and one intermediate delivery of Eros data
(12/31/99). The final archive delivery will include updated versions of
each of the preliminary deliveries.

Following the delivery of data to PDS is a several-month-long period in
which the data will be peer reviewed by PDS. Any liens that are
identified by the peer review process will be rectified by the Project
and the appropriate science teams before they cease operation (expected
to be 30 days after the end of mission for science teams and 10/01/2000
for the SDC) The NEAR project is responsible for resolving all liens
against the final archive delivery. Final acceptance of the data by PDS
will occur only after all liens have been cleared. The early delivery of
data to PDS, such as the Mathilde encounter data, will help to identify
early in the mission any potential problems that can be addressed before
the final archive is generated, thus avoiding liens on the data that
require significant resources to correct.

**7. NEAR Data Release Policy.**

There are no proprietary data rights for the NEAR Mission. Most
uncalibrated (level 1b) data, particularly image data, will be publicly
released by the NEAR project over Internet in close to real time. The
full NEAR Project Data Policy is given in Appendix D.

Fully reduced, calibrated and corrected data products (levels 2 and 3)
will be produced under the direction of the science teams for delivery
to PDS per the schedule given in Section 6. The Team Leaders are
responsible for coordinating all scientific investigations involving the
use of calibrated data (levels 2 and 3) from their respective
instruments and ensuring that all science data products are delivered in
a timely fashion.

**Appendix A. NEAR Science Data Products**

Data products listed by the science teams at the May 1995 NEAR Science
Team Meeting, with additional fundamental (level 1) data suggested for
archiving by the PDS.

Multispectral Imager (MSI)

Validated raw images in PDS format with ancillary information.

Complete pre‑flight calibration files with documentation.

Complete in‑flight calibration files with documentation.

\"Best\" final calibration files, calibration algorithms, and optimum
parameters.

Mosaicked images:

global B/W map.

global color map.

regional high‑res maps.

Mission history file (objectives of sequences, anomalies, etc.)

(an observing log indicating what has changed and why.)

Support data:

A\) Updated pointing (all images).

B\) Improved rotational elements.

C\) Control point network.

D\) Shape model (1x1 degree, R20m)

E\) Grid overlays for selected images.

F\) Global digital image mosaic (6m/pix) with topographic overlay
(8pix/deg).

Near‑Infrared Spectrograph (NIS)

Validated raw 62‑channel data, in PDS format, with ancillary
information.

Complete pre‑flight calibration files with documentation.

Complete in‑flight calibration files with documentation.

\"Best\" final calibration files, calibration algorithms, and optimum
parameters.

Individual I/F calibrated spectra in PDS format with ancillary
information.

Mosaicked map‑projected image cubes (format TBD, but compatible with
MSI).

Mission history file (objectives of sequences, anomalies, etc.)

X‑ray/Gamma‑ray Spectrometer (XGRS)

Cruise and approach phases:

Verification of detector operation.

Calibrations of the XGRS detectors.

Identification of natural and induced activities.

Cross‑calibration of solar monitors.

Eros orbital phase:

Near‑real‑time X‑ray maps:

Relative abundances of Mg, Al, and Si for quiescent sun.

Relative abundances of Mg, Al, Si, S, Ca, and Fe for active sun
conditions.

Near‑real‑time gamma‑ray maps:

Natural radioactivity (most likely K) distribution.

Global composition for selected elements.

Longer‑term data products:

> Elemental composition maps derived from X‑ray data with spatial
> resolution from 5 to 100 km.
>
> Elemental composition maps derived from gamma‑ray data over quadrants
> of Eros. X‑ray solar spectral variation as a function of solar
> activity.

Computer models used for identifications available both before and after
encounter. (software)

Fundamental (level 0/1) data also to be archived:

Detector Count Rates

Natural Radioactivity Rates

EDR\'s from Solar Monitors

Radio Science and Navigation (RS)

Mass of Mathilde and uncertainty.

Mass of Eros and uncertainty.

Harmonic coefficients and associated uncertainties from gravity model.

Harmonic coefficients and associated uncertainties from shape model.

Gravity maps.

Accelerations (mgal) and uncertainties at reference surface.

Geoid potential and associated uncertainties.

Vertical Bouguer (difference) map at reference surface.

Line‑of‑sight acceleration residuals remaining after gravity model.

Spin state of Eros.

Principal axes directions and moments of inertia.

Orbit determinations and ephemerides for satellites of Eros.

Limit upon outgassing acceleration acting upon Eros.

Fundamental (level 0) data also to be archived:

Frequencies vs. time

Doppler shifts relative to ephemeris model vs. time

Ephemeris Model

NEAR Laser Rangefinder (NLR)

Raw type target data (level 1).

[Altimetry data products]{.underline}:

Profiles:

EDRs with approximate horizontal resolution 10m.

> CDRs with 10m horizontal resolution. (Precision orbits, higher
> vertical and horizontal integrity than EDRs.)

Grids:

One month in 50km orbit will provide a 3 km grid.

Six months in 35km orbit will provide a 300 m grid.

Spherical harmonic topographic model and error model:

> A 120th degree and order model (300m resolution) with
> variance‑covariance matrix.

Reference surface:

Global surface from the altimetry referenced to center of mass.

[Gravity and dynamics data products]{.underline}:

Spherical harmonic gravity model:

An approximately 15th degree and order gravitational field model.

Grids:

> Geoid and gravity anomaly maps of Eros for use in geophysical and
> geologic investigations.

Error model:

> The variance‑covariance matrix of the gravity model, an error map and
> error spectrum for the gravity field.

Tracking data and precision orbits:

> Archive the validated Doppler tracking data in a PDS‑compatible format
> and the precision orbits with a radial accuracy of 5‑10 m.

Spin axis and rotation period:

The rotation period and spin axis direction at regular intervals.

> Simple descriptive model developed for comparison with imaging
> results.

Magnetometer (MAG)

Raw B field components (field 1).

Time series (B(t)) in spacecraft coordinates.

Time series in celestial coordinates (J2000 inertial).

Time series in Eros‑centered (non‑inertial) spherical polar coordinate
system.

Spherical harmonic models of Eros \"global\" field ‑ wire
models/graphics (\"hairy asteroid\").

Spherical harmonics descriptions of magnetic \"anomalies\".

Special data products (time series, spectra, etc.) for solar wind
interaction characterization and boundary detection, i.e., BP filter
data, FFT\'s, etc.

Special data products to support joint investigations (GRS, gravity,
etc.)

Fundamental (level 0) data also to be archived:

Raw magnetic field strengths

Corrections applied for spacecraft interaction with B-field

Auxiliary Data Products

Instrument and dataset descriptions to be incorporated into templates
according to PDS guidelines.

**Appendix B. Glossary of Terms and Acronyms**

[Acronyms:]{.underline}

APL ‑ The Johns Hopkins University Applied Physics Laboratory.

C&DH ‑ Command and Data Handling.

DPW - The PDS Data Preparation Workbook.

EDR - Experimental Data Record.

GSE ‑ Ground Support Equipment.

JPL - Jet Propulsion Laboratory.

MAG - Magnetometer, a NEAR instrument.

MOC - Mission Operations Center

MSI - Multi‑Spectral Imager, a NEAR instrument.

NAIF - Navigation and Ancillary Information Facility, a discipline node
of PDS.

NASCOM ‑ NASA Communications.

NEAR - Near Earth Asteroid Rendezvous mission.

NIS - Near‑Infrared Spectrometer, a NEAR instrument.

NLR - NEAR Laser Rangefinder, a NEAR instrument.

NSSDC - National Space Science Data Center.

PDS - The Planetary Data System.

PPI - Planetary Plasma Interactions, a discipline node of the PDS.

RS - Radio Science, a NEAR experiment package.

SBN - Small Bodies Node, a discipline node of the PDS.

SDC - NEAR Science Data Center, based at JHU/APL.

SIS - Software Interface Specification.

SPICE ‑ A system of providing navigation and geometry data.

S = Spacecraft, P = Planet, I = Instrument, C = C‑matrix, and E =
Events.

SR - The PDS Standards Reference.

XGRS - X‑ray Gamma‑ray Spectrometer, a NEAR instrument.

[Terms:]{.underline}

Catalog object ‑ A PDS‑required file formally documenting the details of
a mission, spacecraft, instrument, or data set.

Label ‑ An attached or detached header which formally describes the
structure and content of a data file.

Lien ‑ An action recommended by reviewers or PDS personnel to correct
the archive.

Template ‑ Same as a catalog object

Volume ‑ A single CD‑ROM or other volume of a storage medium.

**Appendix C. Data Level Definitions**

[Level:]{.underline} [Description:]{.underline}

0 The raw telemetry data as received at the ground receiving station or
ground test GSE, organized by contacts or ground test.

0a The telemetry data as produced by the C&DH system on the spacecraft
and passed to the telemetry subsystem. NASCOM headers and trailers have
been separated. Level 0a contains transfer frame packets organized by
contacts or ground tests.

0b The transfer frame packets for virtual channel 2 and sub‑packets for
virtual channels 0 and 3, plus radiometric tracking data, all organized
by contacts or ground test.

1 Level 0b data that have been cleaned and merged, time ordered, and in
packet format. Cleaned and merged means that duplicate data have been
deleted, missing packets are padded out, and the data are organized by
days. The actual format of these data is the same as level 0b. This is
the level that should be passed to the instrument GSE\'s for their
processing.

1a The level 1 data that have been separated by instrument.

1b The level 1a data that have been sorted by instrument data types and
instrument modes. Data are in scientifically useful form, e.g. as images
or individual spectra. These data are still uncalibrated,

2 Level 1b with calibration and corrections applied to yield data in
scientific units.

3 Higher level data products developed for specific scientific
investigations.

**Appendix D. NEAR Project Data Policy**

****

S1P 94‑151

November 28, 1994

To: Thomas B. Coughlin

From: Andrew F. Cheng

Re: NEAR Project Data Policy

This is a summary of the data analysis and release policies for the Near
Earth Asteroid Rendezvous (NEAR) Project. It is meant to cover the
pre‑flight, post‑launch, and data analysis activities of the NEAR
Science Team and Instrument Scientists. A list of these individuals is
attached. Data policies were reviewed and discussed at a full meeting of
the NEAR Science Team held at APL on November 10‑11, 1994. Subsequently,
a draft Data Policy was circulated for comment among all Team members.
Based upon the reviews and comments from Science Team members and
Instrument Scientists, I am issuing the following Data Policy for the
NEAR Project.

Ground Rules

o Selected uncalibrated data, including imaging, will be publicly
released over the INTERNET in close to real time.

o Fully reduced, calibrated and corrected data products will be
published and forwarded to the Planetary Data System as soon as they
have been generated and validated.

o The Project strongly encourages shared data analyses, under the
direction of the teams whose data are being used, among members of
different instrument teams.

o The Team Leaders are responsible for coordinating all scientific
investigations involving the use of data from their respective
instruments.

Guidelines

o In the interest of a systematic and orderly data analysis, the Team
Leaders must approve of all scientific investigations involving the use
of data from their respective instruments.

o Likewise, the Team Leaders must approve of all plans to release or to
publish calibrated data from their respective instruments. In this
context, \'to publish\' includes not only journal articles but also
abstracts and presentations.

o In case of differences of opinion, the issues will be brought before
the Project Scientist for resolution.

Distribution

T. Coughlin NEAR Science Team members

R. E. Gold NEAR Instrument Scientists

K. Heeres Elizabeth Beyer (NASA HQ)

J. Landshof Jurgen Rahe (NASA HQ)

R. Farquhar

L. Young

+-----------------------------------------------------------------------+
| NEAR                                                                  |
|                                                                       |
| Archive                                                               |
|                                                                       |
| Volume                                                                |
+-----------------------------------------------------------------------+

<table>
<colgroup>
<col style="width: 4%" />
<col style="width: 0%" />
<col style="width: 3%" />
<col style="width: 1%" />
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<col style="width: 1%" />
<col style="width: 2%" />
<col style="width: 1%" />
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<col style="width: 3%" />
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<col style="width: 3%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 8%" />
<col style="width: 3%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td colspan="4">Documents</td>
<td colspan="2"></td>
<td colspan="4"><p>Catalog</p>
<p>Objects</p></td>
<td colspan="2"></td>
<td colspan="3">Software</td>
<td colspan="2"></td>
<td colspan="5"><p>Data Set</p>
<p>Collections</p></td>
<td colspan="2"></td>
<td colspan="4">Index</td>
<td colspan="2"></td>
<td colspan="3"><p>Calibration</p>
<p>Files</p></td>
<td colspan="2"></td>
<td colspan="5"><p>Navigation</p>
<p>&amp; Geometry</p></td>
<td colspan="3"></td>
</tr>
<tr class="even">
<td colspan="4"></td>
<td colspan="2"></td>
<td colspan="4"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="4"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="5"></td>
<td colspan="3"></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="3"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3">MERGE</td>
<td colspan="2"></td>
<td colspan="4">MSI</td>
<td colspan="2"></td>
<td colspan="5">NIS</td>
<td colspan="2"></td>
<td></td>
<td colspan="6">XGRS</td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="5">MAG</td>
<td colspan="2"></td>
<td colspan="3">NLR</td>
<td colspan="2"></td>
<td colspan="2">RS</td>
</tr>
<tr class="odd">
<td colspan="3">shape models</td>
<td colspan="2"></td>
<td colspan="4"><p>raw images</p>
<p>calibrations</p>
<p>mosaicked images</p>
<p>shape data</p>
<p>support data</p></td>
<td colspan="2"></td>
<td colspan="5"><p>raw spectra</p>
<p>calibrations</p>
<p>calibrated spectra</p>
<p>image cubes</p>
<p>support data</p></td>
<td colspan="2"></td>
<td></td>
<td colspan="6"><p>X-ray maps</p>
<p>Gamma-ray maps</p>
<p>composition maps</p>
<p>solar spectral variations</p></td>
<td colspan="2"></td>
<td colspan="2"></td>
<td colspan="5"><p>B(t) time series</p>
<p>spherical harmonic models</p>
<p>special data products</p></td>
<td colspan="2"></td>
<td colspan="3"><p>profiles</p>
<p>grids</p>
<p>error models</p>
<p>gravity model</p></td>
<td colspan="2"></td>
<td colspan="2"><p>masses</p>
<p>harmonic coefficient</p>
<p>gravity maps</p>
<p>acceleration residuals</p>
<p>spin state</p></td>
</tr>
</tbody>
</table>

**Figure 1.** General structure of a typical volume of the NEAR archive.

<table style="width:100%;">
<colgroup>
<col style="width: 21%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
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<col style="width: 3%" />
<col style="width: 3%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="22"><strong><span class="smallcaps">Figure 2. NEAR Mission
Timeline and Associated Data Archive Activities</span></strong></td>
</tr>
<tr class="even">
<td><em><strong>Launch 02/17/96</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><p><em><strong>Mathilde</strong></em></p>
<p><em><strong>Encounter</strong></em></p>
<p><em><strong>06/27/97</strong></em></p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><p><em><strong>Earth</strong></em></p>
<p><em><strong>Flyby</strong></em></p>
<p><em><strong>02/98</strong></em></p></td>
<td></td>
<td colspan="3"><p><em><strong>C/A -200D</strong></em></p>
<p><em><strong>06/24/98</strong></em></p></td>
<td></td>
</tr>
<tr class="odd">
<td><span class="smallcaps">Mission Activity</span></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><strong></strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><strong></strong></td>
<td></td>
<td></td>
<td></td>
<td><strong></strong></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td><strong>Cruise Phase</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td><strong>Encounter Phase</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td><strong>Orbital Phase</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td><em><strong><span class="smallcaps">Archive
Activity</span></strong></em></td>
<td></td>
<td colspan="6"></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td><em><strong>Archive Plan</strong></em></td>
<td
colspan="7"><em><strong>----------------------------------------</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td><em><strong>Data Delivery to PDS</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><p><em><strong></strong></em></p>
<p><em><strong>Mathilde</strong></em></p>
<p><em><strong>12/31/97</strong></em></p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td><em><strong>PDS Peer Review</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><em><strong>----------------</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td><em><strong>Lien Clearance</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td><em><strong>Final Archive Acceptance</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td colspan="2"><em><strong>1997</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="2"><em><strong>1998</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

<table style="width:100%;">
<colgroup>
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 3%" />
<col style="width: 4%" />
<col style="width: 4%" />
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<col style="width: 3%" />
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<col style="width: 3%" />
<col style="width: 8%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="27"></td>
</tr>
<tr class="even">
<td></td>
<td colspan="3"><p><em><strong>Eros C/A</strong></em></p>
<p><em><strong>10/10/98</strong></em></p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><p><em><strong>Nominal</strong></em></p>
<p><em><strong>Mission End</strong></em></p>
<p><em><strong>03/31/00</strong></em></p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><p><em><strong>End</strong></em></p>
<p><em><strong>SDC Opns</strong></em></p>
<p><em><strong>10/01/00</strong></em></p></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td><em><strong></strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><em><strong></strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><em><strong></strong></em></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3"><p><em><strong></strong></em></p>
<p><em><strong>Earth Flyby</strong></em></p>
<p><em><strong>08/98</strong></em></p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><p><em><strong></strong></em></p>
<p><em><strong>1st Eros</strong></em></p>
<p><em><strong>Delivery</strong></em></p>
<p><em><strong>12/31/99</strong></em></p></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><p><em><strong></strong></em></p>
<p><em><strong>Final</strong></em></p>
<p><em><strong>Delivery</strong></em></p>
<p><em><strong>06/30/00</strong></em></p></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3"><em><strong>------------</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="3"><em><strong>-----------</strong></em></td>
<td></td>
<td></td>
<td></td>
<td colspan="2"><em><strong>------</strong></em></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><em><strong></strong></em></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td><em><strong></strong></em></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="2"><em><strong>1999</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="2"><em><strong>2000</strong></em></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>