Decay


Low Earth orbiting satellites experience orbital decay and have physical lifetimes determined almost entirely by their interaction with the atmosphere. The drag force that such a satellite experiences is due to its interaction with the few air molecules that are present at these altitudes. The density of the atmosphere at LEO heights is controlled by solar X-ray flux and particle precipitation from the magnetosphere and so varies with the current space weather conditions.

last update: 2017-11-22 17:32:58.900 UTC
10.8 cm flux = 73.000000

date             satellite   norad   epoch          decay

2018-01-21  ==>  STARS-CM    41895   17325.459597   18021.422281
2018-01-21  ==>  STARS-CD    41895   17325.459597   18021.422281
2018-01-24  ==>  COLUMBIA    42702   17326.481509   18024.739428
2018-02-07  ==>  ATLANTIS    42737   17326.555621   18038.723971
2018-03-01  ==>  SGSAT       42703   17326.444288   18060.809131
2018-04-12  ==>  CHALLENGER  42721   17326.484351   18102.917605
2018-04-21  ==>  DUTHSAT     42724   17326.443366   18111.940704
2018-04-23  ==>  ICECUBE     42705   17326.373081   18113.972649
2018-05-03  ==>  LINK        42714   17326.459531   18123.505995
2018-06-01  ==>  INSPIRE-2   42731   17326.439167   18152.956163
2018-06-02  ==>  VELOX-III   41935   17326.497849   18153.971754
2018-06-04  ==>  UPSAT       42716   17326.517187   18155.960150
2018-06-07  ==>  EXALTA-1    42734   17326.508481   18158.194093
2018-06-13  ==>  UNSW-EC0    42723   17326.517790   18164.167956
2018-06-20  ==>  ITF-2       41932   17326.379340   18171.879162
2018-06-20  ==>  HOOPOE      42718   17326.419578   18171.537905
2018-06-30  ==>  POLYITAN-2  42732   17326.534707   18181.247273
2018-07-01  ==>  AALTO-2     42729   17326.479195   18182.643892
2018-07-02  ==>  QBITO       42728   17326.480446   18183.417803
2018-07-03  ==>  XCUBESAT    42707   17326.489549   18184.165963
2018-07-14  ==>  HAVELSAT    42700   17326.416077   18195.561810
2018-07-14  ==>  QBEE        42708   17326.370749   18195.509744
2018-07-14  ==>  SUSAT       42730   17326.431166   18195.176399
2018-07-16  ==>  CXBN-2      42704   17326.385891   18197.819432
2018-07-16  ==>  SPACECUBE   42717   17326.450829   18197.767595
2018-07-19  ==>  SNUSAT-1A   42733   17326.559595   18200.430030
2018-07-19  ==>  SNUSAT-1B   42733   17326.559595   18200.430030
2018-07-28  ==>  SOMP2       42701   17326.509628   18209.887367
2018-08-02  ==>  LILACSAT-1  42725   17326.519312   18214.097963
2018-08-14  ==>  ZA-AEROSAT  42713   17326.438801   18226.240097
2018-08-14  ==>  BEEAGLESAT  42736   17326.450435   18226.261103
2018-08-23  ==>  CSUNSAT1    42715   17326.501470   18235.771098
2018-08-24  ==>  PHOENIX     42706   17326.432642   18236.310638
2018-09-04  ==>  BIRD-J      42820   17325.451196   18247.171500
2018-09-13  ==>  BIRD-B      42823   17325.460884   18256.179722
2018-09-14  ==>  NJUST-1     42722   17326.537537   18257.895664
2018-09-15  ==>  AOXIANG-1   42735   17326.530282   18258.473201
2018-09-16  ==>  BIRD-N      42824   17325.466944   18259.101860
2018-09-19  ==>  BIRD-G      42821   17325.459333   18262.063926
2018-09-26  ==>  BIRD-M      42822   17325.907467   18269.458360
2018-10-04  ==>  TANUSHA-1   42911   17326.508844   18277.687087
2018-10-20  ==>  TANUSHA-2   42912   17326.522075   18293.116894
2018-10-30  ==>  TPU-120     42910   17326.513242   18303.633556
2019-02-06  ==>  BRICSAT     40655   17325.342073   19037.582092
2019-04-28  ==>  NSIGHT-1    42726   17326.441697   19118.412956
2020-02-12  ==>  ECAMSAT     43019   17326.497244   20043.404482
2020-08-15  ==>  PSAT        40654   17325.314933   20228.984603

 
calculations based on SatEvo

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