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: 2018-09-23 10:59:14.140 UTC
10.8 cm flux = 68.000000

date             satellite   norad   epoch          decay

2018-09-23  ==>  LINK        42714   18265.553036   18266.334749
2018-11-03  ==>  UPSAT       42716   18265.279997   18307.456777
2018-11-07  ==>  EXALTA-1    42734   18265.301688   18311.207602
2018-11-12  ==>  INSPIRE-2   42731   18265.266291   18316.529036
2018-11-15  ==>  VELOX-III   41935   18265.169698   18319.343248
2018-11-18  ==>  UNSW-EC0    42723   18265.320137   18322.287133
2018-11-29  ==>  HOOPOE      42718   18265.268546   18333.796917
2018-12-20  ==>  ITF-2       41932   18265.278606   18354.118269
2019-01-06  ==>  AALTO-2     42729   18265.355656   19006.403204
2019-01-08  ==>  XCUBESAT    42707   18265.351850   19008.602994
2019-01-10  ==>  POLYITAN-2  42732   18265.309243   19010.572575
2019-01-20  ==>  HAVELSAT    42700   18265.295026   19020.591906
2019-01-27  ==>  QBITO       42728   18265.337179   19027.869562
2019-02-01  ==>  SUSAT       42730   18265.342547   19032.275009
2019-02-02  ==>  SOMP2       42701   18265.230886   19033.260812
2019-02-06  ==>  QBEE        42708   18265.429710   19037.012015
2019-02-11  ==>  SNUSAT-1B   42727   18265.343427   19042.451981
2019-02-13  ==>  LILACSAT-1  42725   18265.330110   19044.737288
2019-02-14  ==>  NUDTSAT     42733   18265.322981   19045.057091
2019-02-14  ==>  SNUSAT-1A   42733   18265.322981   19045.057091
2019-02-14  ==>  OSIRIS-3U   43027   18265.532763   19045.844240
2019-02-18  ==>  SPACECUBE   42717   18265.465087   19049.166672
2019-03-06  ==>  BEEAGLESAT  42736   18265.428558   19065.538123
2019-03-08  ==>  BIRD-J      42820   18265.303861   19067.615365
2019-03-15  ==>  BIRD-B      42823   18265.345884   19074.399023
2019-03-21  ==>  BIRD-N      42824   18265.449299   19080.879249
2019-03-22  ==>  BIRD-M      42822   18265.358226   19081.458113
2019-03-25  ==>  PHOENIX     42706   18265.236896   19084.004818
2019-03-30  ==>  BIRD-G      42821   18265.332820   19089.067829
2019-04-06  ==>  ZA-AEROSAT  42713   18265.479992   19096.600720
2019-05-04  ==>  AOXIANG-1   42735   18265.484606   19124.489898
2019-05-27  ==>  NJUST-1     42722   18265.352134   19147.737534
2019-06-10  ==>  TANUSHA-1   42911   18265.438510   19161.214911
2019-07-05  ==>  TANUSHA-2   42912   18265.418920   19186.545486
2019-07-24  ==>  TPU-120     42910   18265.469078   19205.999866
2019-09-29  ==>  IRAZU       43468   18265.351694   19272.923724
2019-10-02  ==>  BRICSAT     40655   18264.299079   19275.076750
2019-12-19  ==>  UBAKUSAT    43466   18265.437039   19353.554258
2020-01-29  ==>  NSIGHT-1    42726   18265.351260   20029.802990
2020-04-01  ==>  TANUSHA-4   43598   18265.422229   20092.061162
2020-04-17  ==>  TANUSHA-3   43597   18265.421082   20108.337892
2020-05-11  ==>  ENDUROSAT   43551   18265.439435   20132.952862
2020-06-20  ==>  BIRD-BT     43591   18265.406412   20172.513290
2020-06-24  ==>  BIRD-MY     43589   18265.408223   20176.065958
2020-06-25  ==>  BIRD-PH     43590   18265.407439   20177.368348
2020-07-26  ==>  SIRIUSSAT-1 43595   18265.419100   20208.770840
2020-08-22  ==>  SIRIUSSAT-2 43596   18265.422393   20235.708601
2020-11-12  ==>  CSUNSAT1    42715   18265.384503   20317.155723
2020-11-26  ==>  EQUISAT     43552   18265.570225   20331.001187
2020-12-20  ==>  UBAKUSAT    43467   18265.520707   20355.583495

 
calculations based on SatEvo

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