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POES Performance Status

Welcome to the Polar Operational Environmental Satellites (POES) spacecraft status page. This site provides up to date status information on each spacecraft and its various subsystems.

Below are the color designations for each satellite status:

Meaning
Operational
Operational with Limitation
Operational with Degradation
Non-Operational
Functional (Off)
Status
Green
Yellow
Orange
Red
Blue
Spacecraft Operational Status Status
NOAA-11, -12, -14, -16, -17 Decommissioned RED
NOAA-15 AM Secondary GREEN
NOAA-18 PM Secondary GREEN
NOAA-19 PM Prime Services Mission GREEN

NOTE:  All LTAN values are valid as of January 04, 2024.



NOAA-15 Spacecraft Status Summary


Spacecraft Letter:   K International Designation:   1998 030A
Catalog Number:   25338 Launch Date:   05/13/1998
Operational Date:   12/15/1998 Operational Status:  AM Secondary
GAC:   Yes HRPT:   Yes   STX-2/MSB   1702.5 MHz
LAC:   No APT:   Yes   VTX-2   137.62 MHz
LTAN:   19:18 Inclination Angle:  98.50 deg
Altitude:  807km Precession Rate:  1.05 (min/month)
Period:  101.1 (minutes)  
Note: On Sep 15, 2018 (18/258) at 0353 UTC, the NOAA-15 AVHRR 3A/3B switching was activated to support snow and ice detection over the Alaska region and will remain in that mode until May 14, 2019 (19/134).

Spacecraft Subsystem Status:


Subsystem Description Status
ADACS Attitude Determination and Control System ORANGE
AMSU-A1 Advanced Microwave Sounding Unit -A1 YELLOW
AMSU-A2 Advanced Microwave Sounding Unit -A2 GREEN
AMSU-B Advanced Microwave Sounding Unit -B RED
APT/LRPT Automatic Picture Transmission / Low Rate Picture Transmission GREEN
AVHRR Advanced Very High Resolution Radiometer YELLOW
CCS Command and Control System GREEN
COMM Communications System YELLOW
DCS Data Collection System GREEN
EPS Electrical Power System GREEN
HIRS High Resolution Infrared Radiation Sounder YELLOW
SARP Search and Rescue Processor YELLOW
SARR Search and Rescue Repeater YELLOW
SEM Space Environment Monitor GREEN
TCC Telemetry, Command, & Control GREEN
THERM Thermal Control System YELLOW

* = Spacecraft Issue but No User Impact
** = Investigating Performance Issue which will Impact Users


NOAA-18 Spacecraft Status Summary


Spacecraft Letter:   N International Designation:   2005018A
Catalog Number:   28654 Launch Date:   05/20/2005
Operational Date:   8/30/2005 Operational Status:  PM Secondary
GAC:   Yes HRPT:   Yes   STX-3/HSB   1707.0 MHz
LAC:   No APT:   Yes   VTX-2   137.9125 MHz
LTAN:   22:44 Inclination Angle:  98.74 deg
Altitude:  854km Precession Rate:  3.52 (min/month)
Period:  102.12 (minutes)  
Note: All NOAA-18 MIMU laser gyros have failed; operating RGYRO GYE mode since August 9, 2017 (17/229). Estimated yaw errors ± 0.5 degrees. AVHRR imagery at scan edges will show geolocation errors but usable.

Spacecraft Subsystem Status:


Subsystem Description Status
ADACS Attitude Determination and Control System YELLOW
AMSU-A1 Advanced Microwave Sounding Unit -A1 GREEN **
AMSU-A2 Advanced Microwave Sounding Unit -A2 GREEN
APT/LRPT Automatic Picture Transmission / Low Rate Picture Transmission GREEN
AVHRR Advanced Very High Resolution Radiometer GREEN
COMM Communications GREEN
DCS Data Collection System GREEN
EPS Electrical Power System GREEN
HIRS High Resolution Infrared Radiation Sounder RED
MHS Microwave Humidity Sounder RED
SARP Search and Rescue Processor GREEN
SARR Search and Rescue Repeater GREEN
SBUV Solar Backscatter Ultraviolet Radiometer RED
SEM Space Environment Monitor YELLOW
TCC Telemetry, Command & Control GREEN
THERM Thermal Control System GREEN

* = Spacecraft Issue but No User Impact
** = Investigating Performance Issue which will Impact Users


NOAA-19 Spacecraft Status Summary


Spacecraft Letter:   N-PRIME International Designation:   2009-005-A
Catalog Number:   33591 Launch Date:   02/06/2009
Operational Date:   6/2/2009 Operational Status:  PM Prime Services Mission
GAC:   Yes HRPT:   Yes   STX-1/LSB   1698.0 MHz
LAC:   No APT:   Yes   VTX-1   137.1 MHz
LTAN:   21:28 Inclination Angle:  98.70 deg
Altitude:  870km Precession Rate:  0.77 (min/month)
Period:  102.14 (minutes)  
Note: On 1 May 2014 SNPP becomes the NOAA Prime Polar Orbiter PM s/c and NOAA-19 becomes the Prime NOAA Services Mission PM s/c. GAC/L1B/LAC/HRPT data services from NOAA-19 will remain at existing levels.

Spacecraft Subsystem Status:


Subsystem Description Status
ADCS Advanced Data Collection System YELLOW
ADACS Attitude Determination and Control System GREEN
AMSU-A1 Advanced Microwave Sounding Unit -A1 GREEN
AMSU-A2 Advanced Microwave Sounding Unit -A2 GREEN
APT/LRPT Automatic Picture Transmission / Low Rate Picture Transmission GREEN
AVHRR Advanced Very High Resolution Radiometer GREEN
COMM Communications GREEN
EPS Electrical Power System GREEN
HIRS High Resolution Infrared Radiation Sounder ORANGE
MHS Microwave Humidity Sounder YELLOW
SARP Search and Rescue Processor GREEN
SARR Search and Rescue Repeater GREEN
SBUV Solar Backscatter Ultraviolet Radiometer GREEN *
SEM Space Environment Monitor YELLOW
TCC Telemetry, Command, & Control GREEN
THERM Thermal Control System GREEN

* = Spacecraft Issue but No User Impact
** = Investigating Performance Issue which will Impact Users


Updated as of September 26, 2024.