Topic: JPSS Transition of Operations from C-String to A-String on April 21, 2026
Date/Time Issued: April 21, 2026 1351z
Product(s) or Data Impacted: Real-time Data and End User Data Products (Latency). NOTE: Due to a delay in Orbital Product transfers to the C-String before the transition, additional time has been allocated to resolve this issue. As a result, we are planning to use the second transition window highlighted in light Green. For Mission Partners and external users, please note that the JSH feeds for SDS/EDOS will be on JSHASA0.
Date/Time of Initial Impact (Primary): April 21, 2026 14:20:00z (JDAY 111)
Date/Time of Expected End (Primary): April 21, 2026 15:43:00z (JDAY 111)
Date/Time of Initial Impact (Secondary): April 21, 2026 16:02:00z (JDAY 111)
Date/Time of Expected End (Secondary): April 21, 2026 17:28:00z (JDAY 111)
Date/Time of Initial Impact (Tertiary): April 21, 2026 17:44:00z (JDAY 111)
Date/Time of Expected End (Tertiary): April 21, 2026 19:10:00z (JDAY 111)
4/21/2026 14:20:00 | 4/21/2026 15:43:00 | Transition Back Orbit #1 | ||
4/21/2026 14:06:00 | 4/21/2026 14:19:00 | J01 | 43644 | MCM |
4/21/2026 14:09:00 | 4/21/2026 14:24:00 | SGA1 | 3575 | MCM |
4/21/2026 14:39:40 | 4/21/2026 14:51:24 | GOSAT | 4354 | SVL |
4/21/2026 14:46:00 | 4/21/2026 14:58:00 | NPP | 75041 | FC |
4/21/2026 15:42:55 | 4/21/2026 15:54:19 | GCOM | 74079 | SVL |
4/21/2026 14:55:00 | 4/21/2026 15:10:00 | J02 | 17852 | MCM |
4/21/2026 14:59:00 | 4/21/2026 15:10:00 | J01 | 43645 | SVL |
4/21/2026 16:02:00 | 4/21/2026 17:28:00 | Back up Transition Back Orbit #2 | ||
4/21/2026 15:48:00 | 4/21/2026 16:01:00 | J01 | 43645 | MCM |
4/21/2026 15:50:00 | 4/21/2026 16:04:00 | SGA1 | 3576 | MCM |
4/21/2026 16:19:39 | 4/21/2026 16:29:54 | GOSAT | 4355 | SVL |
4/21/2026 16:26:00 | 4/21/2026 16:36:00 | NPP | 75042 | FC |
4/21/2026 16:38:00 | 4/21/2026 16:51:00 | J02 | 17853 | MCM |
4/21/2026 16:43:00 | 4/21/2026 16:51:00 | J01 | 43646 | SVL |
4/21/2026 17:23:44 | 4/21/2026 17:33:52 | GOCM | 74080 | SVL |
4/21/2026 17:30:00 | 4/21/2026 17:43:00 | SGA1 | 3577 | MCM |
4/21/2026 17:31:00 | 4/21/2026 17:43:00 | J01 | 43646 | MCM |
4/21/2026 17:44:00 | 4/21/2026 19:10:00 | Back up Transition Back Orbit #3 | ||
4/21/2026 17:59:41 | 4/21/2026 18:09:05 | GOSAT | 4356 | SVL |
4/21/2026 18:07:00 | 4/21/2026 18:14:00 | NPP | 75043 | FC |
4/21/2026 18:21:00 | 4/21/2026 18:33:00 | J02 | 17854 | MCM |
4/21/2026 18:27:00 | 4/21/2026 18:34:00 | J01 | 43647 | SVL |
4/21/2026 19:04:13 | 4/21/2026 19:14:10 | GCOM | 74081 | SVL |
4/21/2026 19:10:00 | 4/21/2026 19:23:00 | SGA1 | 3578 | MCM |