# Presentation: 819557

## NPOESS Preparatory Project (NPP)Status 

**NPOESS Preparatory Project (NPP)****Status **

**Jim Gleason**
**NPP Project Scientist**

##  CERES on NPP

**CERES Added to NPP Mission**
**	****Level 1 requirement Change approved**
**	****Instrument refurbishment underway**
**	****On-the-hook October 31, 2008**
**Other Level 1 Requirements Changes**
**	****OMPS Limb Restored**
**	****Orbit Equator Crossing Time changed to 1330**
**	****New LRD June 2010**

- CERES

- VIIRS

- CrIS

- ATMS

- OMPS

## Advanced Technology Microwave Sounder(NASA / Northrop Grumman Electronic Systems)

_**Description**_
_**Purpose:**_  In conjunction with CrIS, global observations of temperature and moisture profiles at high temporal resolution (~ daily).
_**Predecessor **__**	**__**         Instruments:**_  	    AMSU A1 / A2, MHS
_**Approach:**_                         Scanning passive       microwave radiometer            (22 channels                          (23GHz  - 183GHz)
_**Swath width:**_ 2300 km
_**Co-registration:**_  with CrIS

_**Status**_
**Flight Unit on Spacecraft **

## Ozone Mapping Profiler SuiteIPO / NGST / Ball Aerospace and Technologies Corp.

_**Description**_
_**Purpose:**_**  Monitors the total column and vertical profile of ozone**
_**Predecessor **_**                  **_**Instruments:**_**                               TOMS, SBUV,                               GOME, OSIRIS,                SCIAMACHY**
_**Approach:**_**  Nadir                                and limb push                               broom CCD                spectrometers**
_**Swath width:**_**                               2600 km**

_**Status**_
**Limb re-manifested**
**Flight Unit #1 in test and calibration**
**Nadir and Limb has completed TV testing and calibration**
**Integrated Instrument complete functional testing, ready for TV testing**
**On-the-hook October 1, 2008**

**Limb status:  50/50 cost share NOAA and NASA**
**	****         ****NASA to develop algorithm**
**	****         ****NOAA to support operational users**

## Cross-Track Infrared SounderIPO / NGST / ITT Industries

_**Description**_
_**Purpose:**_  In conjunction                with ATMS, global               observations                                     of temperature and                        moisture profiles at                        high temporal                             resolution (~ daily)
_**Predecessor                       Instruments:**_  HIRS,                         AIRS, IASI
_**Approach:**_                             Michelson                          Interferometer                               (1142 channels in 3                    bands (3.5 μm -                                       16 μm)
_**Swath width:**_ 2300 km
_**Co-registration:**_  with ATMS

_**Status**_
**EDU qualification complete and has been tested on spacecraft**
**Flight Unit #1 reassembled and is undergoing TV testing and calibration**
**On-the-hook August 29, 2008**

## Visible Infrared Imaging Radiometer SuiteIPO /NGST/ Raytheon Santa Barbara Remote Sensing

_**Description**_
_**Purpose:**_**  Global observations of land, ocean, & atmosphere parameters at high temporal resolution (~ daily)**
_**Predecessor Instruments:**_** AVHRR, OLS, MODIS, SeaWiFS**
_**Approach:**_**  Multi-spectral scanning radiometer (22 bands between 0.4 ****μ****m and 12 ****μ****m)  12-bit quantization**
_**Swath width:**_**  3000 km**

_**Status**_
**Flight Unit #1 Ambient testing finishing**
**Getting ready for TV testing and calibration**
**Cyro-Radiator Vibe and performance testing complete.  Mechanical stability of launch locks remains an open question. **

## VIIRS Schedule

**Apr 22, 2008****	**** ****	****Pre-Environmental Review **
**May 30, 2008 ****	****	****EMI Testing ****(ElectroMagnetic Interference)**
**Jun 15, 2008 ****	****	****Vibration Testing**
**Aug 1, 2008****	****	****Pre-Thermal Vacuum Testing **
**	****	****	****	****(FP-16 VisNIR out-of-band spectral resp, i.e. cross-talk)**
**Aug 20, 2008 ****	****	****Thermal Vacuum Testing start**
**Jan 11, 2009****	****	****Thermal Vacuum Testing complete**
**Mar 4, 2009****	****	****VIIRS on-the-hook**
**June 2, 2010****	****	****Launch Readiness Date**

## Other Items

**IPO released draft assessments for 22 EDRs**
**	****Available from me    james.f.gleason@nasa.gov**
**Combined MODIS VIIRS Science Team Meeting**
**	**** ****May 13-15, 2008 BWI Hilton**

## NPP Satellite - Nadir Deck View

**NPP Satellite - Nadir Deck View**

**Nadir facing antennas**
**T&C**
**HRD**
**SMD**

**VIIRS**

**CrIS**

**ATMS**

**OMPS**

**Instruments lined up along cold facing panel**

**ATMS and VIIRS EM heat pipe radiators mounted to cold facing panel**

**CrIS and VIIRS cyro-radiators FOV to cold space on cold facing side **

## Questions?

**Backup**

## VIIRS Spectral, Spatial, & Radiometric Attributes