Topic: Transition of NSOF Operations from A-String to C-String 

Date/Time Issued: November 18th, 2021 2200Z

Product(s) or Data Impacted:  Real-time Data and End User Data Products (Latency)

Date/Time of Initial Impact (Primary):  November 19, 2021 16:54:21z (JDAY 323)

Date/Time of Expected End (Primary): November 19, 2021 18:19:39z (JDAY 323)

Date/Time of Initial Impact (Secondary): November 19, 2021 18:37:01z (JDAY 323)

Date/Time of Expected End (Secondary): November 19, 2021 20:00:59z (JDAY 323)

Date/Time of Initial Impact (Tertiary):  November 19, 2021 20:20:35z (JDAY 323)

Date/Time of Expected End (Tertiary): November 19, 2021 21:42:42z (JDAY 323)

Back Orbit #1

Start Time

Stop Time

S/C

Orbit

Station

11/19/2021 16:54:21

11/19/2021 17:09:52

OPS53

 

MCM

11/19/2021 17:11:48

11/19/2021 17:21:47

GCOM

50576

SVL

11/19/2021 17:15:09

11/19/2021 17:28:23

J01

50571

MCM

11/19/2021 17:19:55

11/19/2021 17:31:08

NPP

50572

SVL

11/19/2021 18:03:45

11/19/2021 18:19:39

OPS51

 

MCM

Back Orbit #2

Start Time

Stop Time

S/C

Orbit

Station

11/19/2021 18:37:01

11/19/2021 18:51:29

OPS53

 

MCM

11/19/2021 18:52:25

11/19/2021 19:01:11

GCOM

50577

SVL

11/19/2021 18:58:41

11/19/2021 19:10:34

J01

50572

MCM

11/19/2021 19:02:43

11/19/2021 19:13:25

NPP

50573

SVL

11/19/2021 19:45:43

11/19/2021 20:00:59

OPS51

 

MCM

 

 

Back Orbit #3

Start Time

Stop Time

S/C

Orbit

Station

11/19/2021 20:20:35

11/19/2021 20:33:33

OPS53

 

MCM

11/19/2021 20:32:10

11/19/2021 20:42:02

GCOM

50578

SVL

11/19/2021 20:41:59

11/19/2021 20:53:35

J01

50573

MCM

11/19/2021 20:45:05

11/19/2021 20:57:27

NPP

50574

SVL

11/19/2021 21:28:40

11/19/2021 21:42:42

OPS51

 

MCM

 


 

 

 

Length of Outage:   Approximately 1.5 - 2 hours per transition opportunity

 

Details/Specifics of Change:  The purpose of this notice is to inform multi-mission segments of the plan to move the JPSS Common Ground System, Command, Control, and Communications operations for the JPSS constellation from the A string to the CBU string on November 19th, 2021. A backup date for this activity has been scheduled for November 23rd, 2021 in the event the first attempt needs to be waived.  NPP, N20, DMSP and GCOM-W1 missions may experience data latency during this transition.