# Presentation: 663877

## NOAA POES PROGRAMOn Orbit Satellite Performance

**NOAA POES PROGRAM****On Orbit Satellite Performance**

- Presented to:
- 41th ARGOS OPERATIONS COMMITTEE CONFERENCE
- June 05-07, 2007
- St Jean de Luz, France
- Chris O’Connors, NOAA/NESDIS/OSDPD
- Rene Smith, NOAA/NESDIS/OSO

## TOPICS

- 2

**TOPICS**

**STATUS OF OPERATIONAL SATELLITES**
-  NOAA-12 through 18
-  Drift rates and Equator Crossing Times
**SATELLITE CONSTELLATION STATUS**
-  NOAA-12 through 18 (data recovery status)
-  Instrument and Subsystem Status
-  Real-time Orbits
- NSV Development and Status

## NOAA POES Satellite System – 2007

**Suitland, MD and Camp Springs, MD**

**Wallops Is, VA**

**Polar**
**Orbits**

**NOAA 17**
**10:21 A.M.**

**Fairbanks, AK**

**NOAA18**
**1:46 P.M.**

**Sun-Synchronous**
**Incl. 98.7/98.9**
**Period 101 min.**
**Apogee 530/518 miles**
**Circle Earth 14 times**
**per day**

**Both Eumetsat and **
**NOAA IPO **
**Have tracking stations **
**at Svalbard, Norway**

## STATUS OF OPERATIONAL SATELLITES

_**NOAA-18/N **_**(Launched May 2005)**
- PM Satellite (Primary orbit)
*DCS *has DRU8 anomaly, all other DRUs functional
- Technical status:
- Currently, SOCC retrieves all DCS data for every 24 hour period through GAC playbacks because of OV period equivalent with primary afternoon mission priority (10-11 playback passes/day).
- Expected to start receiving blind orbit GACs from Eumetsat’s Svalbard facility operationally in Summer 07.
- Currently evaluating switching to VTX-2 (137.9125Mhz)
- VTX-2 on NOAA-18 had shown previous temperature instability
- EUM is not using 137.9125MHz due to interference with HIRS
- Several MHS anomalies in early 2007 but maintains nominal performance status

## STATUS OF OPERATIONAL SATELLITES

- 4

**STATUS OF**** OPERATIONAL SATELLITES**

_**NOAA-17/M **_**(Launched June 2002) *****now a secondary status***
- mid AM Satellite (Secondary orbit)
*DCS Fully Operational*
- AMSU A1 failure-power supply (requires NOAA 15 data recovery, good for Argos)
- Technical status:
- TIP swap to side 6, Sept 2006
- STX3 degradation (affects very small dish users of HRPT)
- Currently, SOCC retrieves all DCS data for every 24 hour period through GAC playbacks with primary morning mission priority (10-11 playback passes/day).
- NOAA expects to use the IPO Svalbard antenna (NOAA controlled asset) and the IJPS interface into SOCC to retrieve blind orbit GACs beginning in Fall 2007 on a non-interference basis with N18 from Eumetsat Svalbard.

## STATUS OF OPERATIONAL SATELLITES

- 5

**STATUS OF**** OPERATIONAL SATELLITES**

_**NOAA-16/L **_**(Launched Sep 2000)**
- PM Satellite (Secondary orbit)
*DCS Fully Operational*
- Technical status:
- Currently, SOCC retrieves all DCS data for every 24 hour period through GAC playbacks with primary PM mission priority (10-11 playback passes/day).
- Data recovery could be increased dramatically if NPOESS Svalbard facility is used operationally, but, conflicts with N18 over Svalbard at similar times means blind orbit recovery not operationally feasible (it needs to use the same interface into SOCC).

## STATUS OF OPERATIONAL SATELLITES

- 6

**STATUS OF**** OPERATIONAL SATELLITES**

_**NOAA-15/K **_**(Launched May 1998)**
- Secondary AM Satellite, due to erratic AVHRR, HIRS, and AMSU on NOAA-16 and NOAA-17
- Most instruments operating nominally
*DCS Fully Operational*
- Technical Status:
- Currently, SOCC retrieves all DCS data for every 24 hour period through GAC playbacks with primary morning mission priority (8 playback passes/day).
- Antenna anomalies allow only omni directional antenna to be used for non-realtime (GAC) data retrieval.

## STATUS OF OPERATIONAL SATELLITES

- 7

**STATUS OF**** OPERATIONAL SATELLITES**

_**NOAA-14/J**_** (Launched Dec 1994)**
- Backup PM Satellite;
*DCS Fully Operational*
- Currently, SOCC retrieves all DCS data for every 24 hour period through STIP playbacks with backup morning (drifted into N15 orbit) mission priority (4 playback passes/day).
_**NOAA-12/D**_** (Launched May 1991)**
- Backup AM satellite
*DCS Fully Operational*
- Currently, SOCC retrieves 3 hours (2 orbits) of DCS data for every 24 hour period through a single STIP playback with backup morning mission priority. (1 playback pass/day, not routine coverage).
***NOAA does not plan to use NPOESS Svalbard for data recovery on these two spacecrafts.***

- Decommissioned
- 23 May 2007/JD 143

## Current Constellation Orbital Configuration

**Sun**

- Current Constellation Orbital Configuration

**NOAA-12**

**NOAA-15**

**NOAA-16**

**NOAA-18**

**METOP2**

**NOAA-14**

**NOAA-17**

- Constellation as of 5/15/07

**17:21 (drift -1.8 min/month)**

- Mean Local Times at the Ascending Node (hh:mm)

**17:20 (drift +1.5 min/month)**

**21:55 (drift +2.4 min/month)**

**15:50 (drift +3.9 min/month)**

**22:11 (drift -1.2 min/month)**

**13:38 (drift -0.3 min/month)**

**21:31 (drift +0.41 min/month)**

**12:00**
**Noon**

**00:00**

**18:00**

**06:00**

## DRIFT RATES AND EQUATOR CROSSING NODES (ECN) As of May 2007

- 8

**DRIFT RATES AND EQUATOR CROSSING NODES (ECN) As of May 2007**

**STATUS OF****OPERATIONAL SATELLITES****(Continued)**

**Spacecraft**

** **

**Launch Date**

** **

**Equator Crossing Times**

** **

**Drift Rate**

** **

- NOAA

- -

- 16

- SEPT 2000

- 1555 Ascending

- +

- 3.9 min/month

- NOAA

- -

- 15

- MAY 1998

- 0521 Descending

- -

- -1.8 min/month

- NOAA

- -

- 14

- DEC 1994

- 2155 Ascending

- +2.4 min/month

- NOAA

- -

- 12

- MAY 1991

- 0520 Descending

- +1.5 min/month

- NOAA

- -

- 17

- JUNE 2002

- 1011 Descending

- -1.2 min/month

- NOAA

- -

- 18

- MAY 2005

- 1338 Ascending

- -0.3 min/month

## OSO S/C Priorities by Time

| Timeframe | S/C PRIORITY |
| --- | --- |
| Currently | N18 ≥ N17>N15>N16>N12 |
| METOP OPERATIONAL
≈APR 07-DEC 07 | N18 ≥ M02>N15>N17>N16>N12 |
| METOP FULLY OPERATIONAL FOR USERS
DEC 07+ | N18≥M02>N15>N16>N17>N12 |

- Spacecraft priorities for data recovery and transfers.
- All data recovery is still expected on NOAA-15 thru17

## NSV Development

- Tested the ability to flow NSV data while meeting IJPS data flow requirements
- Robustness of the polar frame syncs are being addressed but we have confirmed capabilities and timing issues.
- Some mission products to be finalized and tested.
- Contact schedules can be generated to include: FBKS, WCDA, NSV, SVL, and Coriolis
- Successfully developed the recorder schedules for KSAT to ingest
- KSAT successfully ingested the recorder schedule
- Still need to develop integrated LEO-T schedule
- Crew Training still to be completed
- Final approval and implementation from OSO management pending
- IJPS issues have priority for resources in completing this task

## Planned Usage for NSV

- Blind orbit data recovery from NOAA-17, NOAA-16, and NOAA-15 on a non-interference basis with NOAA-18.
- Once implemented would 2 additional supports and more timeliness in recovering those supports
- No command capability
- Data recovery through the on-board recorder schedules
- Target date: Late summer 2007

## Backup Slide(s)

## CURRENT ON-ORBIT DATA CONFIGURATION15 May 2007