Block 5D Satellite Bus

Data current as of 2026-07-20.

The Block 5D bus accounts for 18 cataloged objects, of which 18 are in orbit and 2 are active. Most are built by RCA. The largest operator on this bus is AFSMC. The first launched in 1976, the most recent in 2014.

18
In orbit
2
Active
18
Total launched
0
Reentered

Block 5D launched per year

1 1976: 1 object launched 1977: 1 object launched 1978: 1 object launched 1979: 1 object launched 1980: 0 objects launched 1981: 0 objects launched 1982: 1 object launched 1983: 1 object launched 1984: 0 objects launched 1985: 0 objects launched 1986: 0 objects launched 1987: 1 object launched 1988: 1 object launched 1989: 0 objects launched 1990: 1 object launched 1991: 1 object launched 1992: 0 objects launched 1993: 0 objects launched 1994: 1 object launched 1995: 1 object launched 1996: 0 objects launched 1997: 1 object launched 1998: 0 objects launched 1999: 1 object launched 2000: 0 objects launched 2001: 0 objects launched 2002: 0 objects launched 2003: 1 object launched 2004: 0 objects launched 2005: 0 objects launched 2006: 1 object launched 2007: 0 objects launched 2008: 0 objects launched 2009: 1 object launched 2010: 0 objects launched 2011: 0 objects launched 2012: 0 objects launched 2013: 0 objects launched 2014: 1 object launched 1976 1981 1986 1991 1996 2001 2006 2011
Still in orbit Click a year to list its satellites.

Typical specifications

Most common values across cataloged Block 5D satellites.

Manufacturer RCA
Purpose Meteorology
Launch mass 447 kg
Dry mass 447 kg
Length 6.1 m
Diameter 1.2 m
Span 6.9 m
Shape Box + Pan
Power Deployable solar array, batteries
Propulsion Star 37S
Design life 5 years (design); 22 years (reached, #14)
Equipment see above
Typical orbit 102 min period, 99° inclination

Top operators

AFSMC 8 AFSD 4 SAMSO 4 AFSSD2 2

Top countries

US 18

Block 5D satellites

Track any of them live in KeepTrack.

Name NORAD COSPAR Owner Launched Orbit Status Track
DMSP 5D-3 F19 (USA 249) DMSP F-19 39630 2014-015A AFSMC Apr 3, 2014 102 min, 98.8° Inactive
DMSP 5D-3 F18 (USA 210) DMSP F-18 35951 2009-057A AFSMC Oct 18, 2009 102 min, 98.9° Active
DMSP 5D-3 F17 (USA 191) DMSP F-17 29522 2006-050A AFSMC Nov 4, 2006 102 min, 98.7° Active
DMSP 5D-3 F16 (USA 172) DMSP F-16 28054 2003-048A AFSMC Oct 18, 2003 102 min, 99.0° Inactive
DMSP 5D-3 F15 (USA 147) DMSP F-15 25991 1999-067A AFSMC Dec 12, 1999 102 min, 99.0° Inactive
DMSP 5D-2 F14 (USA 131) DMSP F-14 24753 1997-012A AFSMC Apr 4, 1997 102 min, 98.8° Inactive
DMSP 5D-2 F13 (USA 109) DMSP F-13 23533 1995-015A AFSMC Mar 24, 1995 102 min, 98.8° Inactive
DMSP 5D-2 F12 (USA 106) DMSP F-12 23233 1994-057A AFSMC Aug 29, 1994 102 min, 98.7° Inactive
DMSP 5D-2 F11 (USA 73) DMSP F-11 21798 1991-082A AFSSD2 Nov 28, 1991 102 min, 98.7° Inactive
DMSP 5D-2 F10 (USA 68) DMSP F-10 20978 1990-105A AFSSD2 Dec 1, 1990 100 min, 98.6° Inactive
DMSP 5D-2 F9 (USA 29) DMSP F-9 18822 1988-006A AFSD Feb 3, 1988 101 min, 98.4° Inactive
DMSP 5D-2 F8 (USA 26) DMSP F-8 18123 1987-053A AFSD Jun 20, 1987 101 min, 98.7° Inactive
OPS 1294 (DMSP 5D-2 F7) DMSP F-7 14506 1983-113A AFSD Nov 18, 1983 101 min, 98.4° Inactive
OPS 9845 (DMSP 5D-2 F6) DMSP F-6 13736 1982-118A AFSD Dec 21, 1982 101 min, 98.6° Inactive
OPS 5390 (DMSP 5D-1 F4) DMSP F-4 11389 1979-050A SAMSO Jun 6, 1979 101 min, 98.6° Inactive
OPS 6182 (DMSP 5D-1 F3) DMSP F-3 10820 1978-042A SAMSO May 1, 1978 100 min, 98.4° Inactive
OPS 5644 (DMSP 5D-1 F2) DMSP F-2 10033 1977-044A SAMSO Jun 5, 1977 101 min, 99.1° Inactive
OPS 5721 (DMSP 5D-1 F1) DMSP F-1 09415 1976-091A SAMSO Sep 11, 1976 101 min, 98.4° Inactive

Frequently asked questions

How many Block 5D satellites are there?

The catalog lists 18 objects built on the Block 5D bus. 18 are in orbit and 0 have reentered.

How many Block 5D satellites are in orbit?

18 Block 5D objects are currently in orbit, of which 2 carry an active status.

Who builds the Block 5D bus?

The Block 5D bus is most commonly built by RCA.

When did the first Block 5D satellite launch?

The first cataloged Block 5D satellite launched in 1976, and the most recent in 2014.

Satellite data compiled by KeepTrack from CelesTrak, Space-Track, and GCAT, provided under CC BY-NC 4.0.