Status for Iridium payloads

Iridium status as of Novenber, 2012
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Iridiums not listed in the following table are thought to be stable
in orbit and capable of generating flares.

Nov. 29, 2000: Iridium 79 (NCat 25470) decayed.
Dec. 30, 2000: Iridium 85 (NCat 25529) decayed.
May 5, 2001:   Iridium 48 (NCat 25107) decayed.
Jan. 31, 2002: Iridium 27 (NCat 24947) decayed.
Mar. 11, 2003: Iridium 9 (NCat 24838) decayed.
Jan. 29, 2004: Spacecom exchanged the names for objects 25577
               (now Iridium 20) and 25578 (now Iridium 11).
Aug. 2003:     Iridium 38 failed.
June 2004:     Iridiums 2, 38, 69 and 73 were changed to "failed".
Apr. 24, 2005: Iridium 16 has been replaced by Iridium 86.
June 14, 2005: Iridium 16 has been seen tumbling - changed to "tum".
June 2005:     Iridium 98 has changed its inclination so that it will
               drift between planes.
Aug. 2005:     Iridium 77 has been maneuvered into the orbital spot
               for Iridium 17.  Presumably, Iridium 17 has failed.
Oct. 2005:     Iridium 90 has changed its inclination so that it will
               drift between planes.
Jan. 2006:     Spacecom has switched the names for Iridium 91 and Iridium 90
Jan. 10, 2006: Iridium 74 has been moved into a lower orbit and Iridium 21
               was moved to take its place.
Jan. 10, 2007: From January 5 to January 9, 2007, Iridium 97 was moved from
               its lower orbit to an orbit "next to" Iridium 36.
Mar. 6, 2007:  Iridium 36 has not had an orbit maintenance maneuver since
               January and was observed to flash, so I assume it has failed.
May 4, 2007:   Iridium 98 has changed its inclination so that it is now
               a spare in its new plane.
Jan. 22, 2008: Iridium 90 has changed its inclination so that it is now
               a spare in its new plane.
Jul. 19, 2008: Unusual changes in mean motion by Iridium 28
Jul. 26, 2008: Iridium 95 moved to replace Iridium 28
Dec. 22, 2008: It is clear that Iridium 28 was no longer being controlled
               as of about Sep. 20, 2008 - probably since July 2008
Feb. 10, 2009: Collision between Iridium 33 and Cosmos 2251
Mar. 2, 2009:  Iridium 91 was placed into service to replace Iridium 33
Nov. 3, 2010:  Iridium 11 was placed into service next to Iridium 23
Aug. 8, 2011:  Iridium 26 apparently failed.  Replaced by Iridium 11.
July, 2012:    Iridium 51 was moved next to Iridium 7
July 20, 2012: Iridium 4 is no longer station keeping
Nov. 13, 2012: Iridium 94 was placed into service next to Iridium 23.

 NCat    Name           Status   Comment
 24796   Iridium 4      unc      Failed? No longer station keeping after July 20, 2012
 24836   Iridium 914    tum      Failed; was called Iridium 14
 24841   Iridium 16     tum      Removed from operation about April 7, 2005
 24842   Iridium 911    tum      Failed; was called Iridium 11
 24870   Iridium 17     tum      Failed in August 2005
 24871   Iridium 920    tum      Failed; was called Iridium 20
 24873   Iridium 921    tum      Failed; was called Iridium 21
 24906   Iridium 23              Partial failure? in November 2010
 24903   Iridium 26     unc      Apparently failed in August 2011.
 24946   Iridium 33     tum      Destroyed by a collision on Feb. 10, 2009
 24948   Iridium 28     unc      Assumed failed about July 19, 2008
 24967   Iridium 36     tum      Failed in January 2007
 25043   Iridium 38     tum      Failed in August 2003
 25078   Iridium 44     tum      Failed
 25105   Iridium 24     tum      Failed
 25262   Iridium 51              Moved next to Iridium 7 in July, 2012
 25319   Iridium 69     tum      Failed
 25320   Iridium 71     tum      Failed
 25344   Iridium 73     tum      Failed
 25345   Iridium 74     ?        Removed from operation about January 8, 2006
 25527   Iridium 2      tum      Failed
 25577   Iridium 20              was called Iridium 11
 25578   Iridium 11              was called Iridium 20
 25777   Iridium 14     ?        Spare   was called Iridium 14A
 25778   Iridium 21              Replaced Iridium 74   was called Iridium 21A
 27372   Iridium 91              Replaced Iridium 33 about Mar. 2, 2009   was called Iridium 90
 27373   Iridium 90     ?        Spare (new plane Jan. 2008)   was called Iridium 91
 27374   Iridium 94              Next to Iridium 23
 27375   Iridium 95              Replaced Iridium 28 about July 26, 2008
 27376   Iridium 96     ?        Inclination 87.2 - migrating between planes
 27450   Iridium 97              Replaced Iridium 36 on Jan. 10, 2007
 27451   Iridium 98     ?        Spare (new plane May 2007)

Status  Meaning
------  -------
blank   Object is operational

tum     tumbling - no flares, but flashes seen on favorable transits.

unc     uncontrolled

?       controlled, but not at operational altitude - flares may be unreliable.

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Iridium Constellation Status information by Rod Sladen:
Iridium Status

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