Update #10: As NWS National Centers for Environmental Prediction (NCEP) and other downstream users have confirmed the readiness of their systems to eliminate negative impacts on their weather models, ESPC personnel will enable the flow of S-NPP CrIS-FS-SDR and CRIS-SCIENCE-GEO products from IDPS Operations on June 2 at 12:00 UTC. These products will only contain Mid Wavelength Infrared and Short Wavelength Infrared data. The first NPP contact following this subscription modification will be on Contact #49729 (AOS @12:07 UTC), after which users should expect to see the distribution of the S-NPP CrIS SDR products.  The NOAA-20 CrIS instrument will continue to provide all CrIS Infrared data needs. Additionally, PDA will not distribute S-NPP NUCAPS EDRs to users due to degraded data quality without longwave bands.

Update #9: IDPS Operations has implemented the threshold changes to enable production of CrIS-FS-SDRs and CrIS-SDR-GEO again to the CLASS and GRAVITE mission partners as of today 5/27 @ 20:01 UTC. All downstream users that receive their data from NDE and PDA will not receive this data until a future date as determined by the user community.  

Update #8: IDPS will not generate CrIS SDR (Mid Wavelength Infrared and Short Wavelength Infrared only) today per recent coordination with the user community.

Update #7: IDPS plans to generate CrIS SDR (Mid Wavelength Infrared and Short Wavelength Infrared only) on May 27, 2021. As the specific time of data starting is available, that information will be updated. 

Update #6: On May 25, 2021 an attempt was made to recover the CrIS Long Wave (LW) Signal Processor (SP) on SNPP, but that recovery procedure was unsuccessful. OSPO Flight Engineers and the CrIS instrument vendor will continue to work on alternative viable recovery efforts as well as root cause analysis for the current Side 2 failure for the next week(s).  The SNPP CrIS instrument is now in an operational state on Side 2; however, the CrIS instrument is only generating Mid Wavelength Infrared (MWIR) and Short Wavelength Infrared (SWIR) Level 0 data - higher level CrIS data will be enabled shortly after modifications are implemented to SDR processing. Please see additional information in Details/Specifics of Change below. As new updates are available regarding SNPP CrIS, that information will be shared with the user community.

Update #5: Due to this state, CrIS-SCIENCE-SDR for S-NPP will be unavailable indefinitely until a path forward has been discussed with the right parties. The prime CrIS instrument on the NOAA-20 spacecraft will continue to provide all CrIS data needs.

Update #4: Due to this state, CrIS-SCIENCE-SDR for S-NPP will be unavailable indefinitely until a path forward has been discussed with the right parties. The prime CrIS instrument on the NOAA-20 spacecraft will continue to provide all CrIS data needs.

Update #3:  The state, CrIS-SCIENCE-SDR for S-NPP will be unavailable indefinitely until a path forward has been discussed with the right parties. The prime CrIS instrument on the NOAA-20 spacecraft will continue to provide all CrIS data needs.

Update #2: Initial efforts to troubleshoot the Long Wave segment of the S-NPP CrIS instrument have not been successful. Due to this state, CrIS-SCIENCE-SDR for S-NPP will be unavailable indefinitely until a path forward has been discussed with the right parties. The prime CrIS instrument on the NOAA-20 spacecraft will continue to provide all CrIS data needs.

Update #1:  The initial impact time for CRIS Instrument anomaly is1542z. The CRIS anomaly is still ongoing and being investigated.   

Topic:  NPP SMD CRIS data outage/delay 

Date/Time Issued: June 1, 2021 2005 UTC

Product(s) or Data Impacted:  All NPP CRIS products

Date/Time of Initial Impact:  May 21, 2021 1552Z

Date/Time of Expected End: TBD

Length of Outage: TBD

Details/Specifics of Change: During Fairbanks contact 49561 (AOS 1552Z). CRIS instrument compromised aboard spacecraft probable data processing issues. The CrIS Sensor Data Records (SDR) processing software has been reconfigured in order to create the SDR without the Longwave Wavelength InfraRed (LW) data and SDR distribution is expected by the end of this week. The CrIS SDR is an input to the SNPP NOAA Unique Combined Atmospheric Processing System (NUCAPS)/Hyper-Spectral Enterprise Algorithm Package (HEAP) Environmental Data Record (EDR), however the EDR requires the CrIS LWIR data so the EDR is not being generated.  The engineering and science team, with inputs from mission partners, are considering the feasibility of switching SNPP CrIS from Side 2 electronics to Side 1 electronics.  CrIS has two electronic suites: Side 1 and Side 2.  SNPP CrIS has been operating on the Side 2 electronics since June 2019, when the MWSP failed. Switching to Side 1 will provide  Long Wave (LW) and Short Wavelength InfraRed (SWIR) data. Mission partners have prioritized LW as the highest priority.  The switchover could take one to two weeks.  The CrIS instrument on the NOAA-20 spacecraft continues to provide CrIS data needs as the primary satellite.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

Web Site(s) for applicable information: N/A