EPCM Satellite Bus
Data current as of 2026-07-20.
The EPCM bus accounts for 19 cataloged objects, of which 0 are in orbit and 0 are active. 18 have reentered. Most are built by NGISD. The largest operator on this bus is NGIS. The first launched in 2015, the most recent in 2026.
0
In orbit
0
Active
19
Total launched
18
Reentered
EPCM launched per year
Still in orbit Since reentered Click a year to list its satellites.
Typical specifications
Most common values across cataloged EPCM satellites.
| Manufacturer | NGISD |
|---|---|
| Purpose | Space Station logistics |
| Launch mass | 2326 kg |
| Dry mass | 2326 kg |
| Length | 6.4 m |
| Diameter | 2.9 m |
| Span | 10.5 m |
| Shape | Cyl+ 2 pan |
| Power | 2 deployable solar arrays, batteries |
| Propulsion | IHI BT-4, 32 x MR-106M |
| Design life | 66 days |
Top operators
NGIS 9 OATKD 6 NGISD 4
Top countries
US 19
EPCM satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| CYGNUS NG-24 | 68689 | 2026-079A | NGIS | Apr 11, 2026 | 93 min, 51.6° | Inactive | ◉ |
| CYGNUS NG-21 S.S. Francis R. Scobee | 60378 | 2024-139A | NGIS | Aug 4, 2024 | 93 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-20 S.S. Patricia Robertson | 58898 | 2024-021A | NGIS | Jan 30, 2024 | 93 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-19 S.S. Laurel Clark | 57488 | 2023-110A | NGIS | Aug 2, 2023 | 93 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-18 S.S. Sally Ride | 54232 | 2022-149A | NGIS | Nov 7, 2022 | 91 min, 51.7° | Reentered | ◉ |
| CYGNUS NG-17 S.S. Piers Sellers | 51712 | 2022-015A | NGIS | Feb 19, 2022 | 90 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-16 S.S. Ellison Onizuka | 49064 | 2021-072A | NGIS | Aug 10, 2021 | 94 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-15 S.S. Katherine Johnson | 47689 | 2021-013A | NGIS | Feb 20, 2021 | 94 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-14 S.S. Kalpana Chawla | 46530 | 2020-069A | NGIS | Oct 3, 2020 | 90 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-13 S.S. Robert Lawrence | 45175 | 2020-011A | NGISD | Feb 15, 2020 | 92 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-12 S.S. Alan Bean | 44701 | 2019-071A | NGISD | Nov 2, 2019 | 94 min, 51.6° | Reentered | ◉ |
| CYGNUS NG-11 SS Roger Chaffee | 44188 | 2019-022A | NGISD | Apr 17, 2019 | 90 min, 51.7° | Reentered | ◉ |
| CYGNUS NG-10 SS John Young | 43704 | 2018-092A | NGISD | Nov 17, 2018 | 91 min, 51.6° | Reentered | ◉ |
| CYGNUS OA-9 SS J.R. Thompson | 43474 | 2018-046A | OATKD | May 21, 2018 | 92 min, 51.6° | Reentered | ◉ |
| CYGNUS OA-8 SS Gene Cernan | 43006 | 2017-071A | OATKD | Nov 12, 2017 | 92 min, 51.6° | Reentered | ◉ |
| CYGNUS OA-7 SS John Glenn | 42681 | 2017-019A | OATKD | Apr 18, 2017 | 92 min, 51.6° | Reentered | ◉ |
| CYGNUS OA-5 SS Alan Poindexter | 41818 | 2016-062A | OATKD | Oct 17, 2016 | 95 min, 51.6° | Reentered | ◉ |
| CYGNUS OA-6 SS Rick Husband | 41393 | 2016-019A | OATKD | Mar 23, 2016 | 92 min, 51.6° | Reentered | ◉ |
| CYGNUS ORB-4 SS Deke Slayton II | 41101 | 2015-072A | OATKD | Dec 6, 2015 | 92 min, 51.6° | Reentered | ◉ |
Frequently asked questions
How many EPCM satellites are there?
The catalog lists 19 objects built on the EPCM bus. 0 are in orbit and 18 have reentered.
How many EPCM satellites are in orbit?
0 EPCM objects are currently in orbit, of which 0 carry an active status.
Who builds the EPCM bus?
The EPCM bus is most commonly built by NGISD.
When did the first EPCM satellite launch?
The first cataloged EPCM satellite launched in 2015, and the most recent in 2026.