Program

SOLTP

Payloads: 13
In orbit: 12
Operational (CelesTrak): 10
Re-entered: 1
First launch: 2001-12-07
Latest launch: 2025-09-24

Owners

NASA Goddard Space Flight Center10
GSFC/APL2
APL/GSFC1

Built by

Payloads in this program

Name	NORAD	Launch date	Status
TIMED	26998	2001-12-07	Operational
STEREO A	29510	2006-10-26	Operational
STEREO B	29511	2006-10-26	Not operational
SDO	36395	2010-02-11	Operational
RBSP A	38752	2012-08-30	Re-entered 2026-03-11
RBSP B	38753	2012-08-30	Not operational
MMS 1	40482	2015-03-13	Operational
MMS 2	40483	2015-03-13	Operational
MMS 3	40484	2015-03-13	Operational
MMS 4	40485	2015-03-13	Operational
PARKER SOLAR PROBE	43592	2018-08-12	Operational
IMAP	65725	2025-09-24	Operational
CARRUTHERS	65727	2025-09-24	Operational

From GCAT by Jonathan McDowell (CC BY 4.0). Roles are counted from the catalogue itself, not from GCAT type labels, which GCAT describes as patchy. About this source