Subject: Product Outage/Anomaly: Update #1 Jason-2 is in Safe Hold This is a multi-part message in MIME format. --Boundary_(ID_Cq7pqojJRvd5O7B+sXHrdQ) Content-type: text/plain; charset=windows-1252; format=flowed Content-transfer-encoding: 7BIT Update #1: CNES continues to investigate the Jason-2 spacecraft status with regards to its gyros. 2 of its 3 gyros are showing an abnormal behavior, very likely due to their ageing during 9 years in the difficult radiation environment experienced at a 1336 km orbit. As 2 gyros out of 3 are required to ensure nominal attitude control, no mission recovery has been possible for the moment, nor is planned within the next few days : actions for recovery are however ongoing and CNES is still optimistic about resuming Jason-2 data production in the future. A Joint Steering Group will be held June 20th to discuss future plans on Jason-2.* Topic: * No data was received from Jason-2 on Pass 41736, Jason-2 Satellite is in Safe Hold Mode.* **Date Issued:* June 13, 2017 1340Z *Product(s) or Data Impacted:* Jason-2 OGDRs distributed via DDS and Class users. *Date/Time of Initial Impact:* May 17, 2017 2208Z *Date/Time of Expected End:* TBD * Length of Event:* TBD *Details/Specifics of Change: *During Rev 41736, We observed no telemetry for Jason-2 using Usingen 1 Earth Terminal. We initially switched to Usingen 2 Earth Terminal to eliminate the possibility of a fault at the Usingen 1. Next, we attempted Low Rate at Usingen 2 and received no telemetry. After switching back to Usingen 1 and going to Low Rate, we received telemetry, but with less than 2 minutes before Loss-of-Signal. We have begun recovery steps from Safe Hold Mode, and are coordinating with CNES. * Contact Information for Further Information: *ESPCOperations@noaa.gov at 301-817-3880. David Donahue Satellite Services Division NOAA/NESDIS/OSPO/SPSD/SPB (301) 683-3236 David.R.Donahue@noaa.gov *Web Site(s) for applicable information:*N/A ** **This message was sent from ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request. --Boundary_(ID_Cq7pqojJRvd5O7B+sXHrdQ) Content-type: text/html; charset=windows-1252 Content-transfer-encoding: 8BIT Jason-2 NOTIFICATION
Update #1: status with regards to its gyros. 2 of its 3 gyros are showing an abnormal behavior, very likely due to their ageing during 9 years in the difficult radiation environment experienced at a 1336 km orbit. As 2 gyros out of 3 are required to ensure nominal attitude control, no mission recovery has been possible for the moment, nor is planned within the next few days : actions for recovery are however ongoing and CNES is still optimistic about resuming Jason-2 data production in the future. A Joint Steering Group will be held June 20th to discuss future plans on Jason-2.

Topic: Jason-2 Satellite is in Safe Hold Mode.

Date Issued: June 13, 2017 1340Z

Product(s) or Data Impacted: Jason-2 OGDRs distributed via DDS and Class users.

Date/Time of Initial Impact: May 17, 2017 2208Z

Date/Time of Expected End: TBD

Length of Event:
TBD

Details/Specifics of Change: no telemetry for Jason-2 using Usingen 1 Earth Terminal. We initially switched to Usingen 2 Earth Terminal to eliminate the possibility of a fault at the Usingen 1. Rate at Usingen 2 and received no telemetry. After switching back to Usingen 1 and going to Low Rate, we received telemetry, but with less than 2 minutes before Loss-of-Signal.

We have begun recovery steps from Safe Hold Mode, and are coordinating with CNES.

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

David Donahue
Satellite Services Division
NOAA/NESDIS/OSPO/SPSD/SPB
(301) 683-3236
David.R.Donahue@noaa.gov

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

This message was sent from ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request.


--Boundary_(ID_Cq7pqojJRvd5O7B+sXHrdQ)--