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: 2018-03-28 14:59:05.800 UTC
10.8 cm flux = 68.000000

date             satellite   norad   epoch          decay

2018-05-04  ==>  SGSAT       42703   18087.119384   18124.065529
2018-07-09  ==>  CHALLENGER  42721   18087.152553   18190.888426
2018-07-22  ==>  DUTHSAT     42724   18087.102145   18203.610224
2018-08-14  ==>  LINK        42714   18087.146725   18226.350288
2018-09-21  ==>  ICECUBE     42705   18087.376765   18264.576066
2018-09-22  ==>  UPSAT       42716   18087.164592   18265.075589
2018-10-12  ==>  UNSW-EC0    42723   18087.109762   18285.853807
2018-10-16  ==>  INSPIRE-2   42731   18087.129595   18289.410479
2018-10-18  ==>  VELOX-III   41935   18087.333204   18291.126974
2018-10-19  ==>  HOOPOE      42718   18087.147135   18292.507532
2018-11-05  ==>  EXALTA-1    42734   18087.451572   18309.328722
2018-11-22  ==>  AALTO-2     42729   18087.158208   18326.154827
2018-12-01  ==>  QBEE        42708   18087.111582   18335.140862
2018-12-03  ==>  XCUBESAT    42707   18087.137642   18337.006327
2018-12-06  ==>  POLYITAN-2  42732   18087.133496   18340.161059
2018-12-09  ==>  QBITO       42728   18087.103961   18343.534284
2018-12-10  ==>  SUSAT       42730   18087.154158   18344.415376
2018-12-11  ==>  ITF-2       41932   18087.284337   18345.256707
2018-12-12  ==>  SPACECUBE   42717   18087.135373   18346.869346
2018-12-13  ==>  SNUSAT-1A   42733   18087.155154   18347.263392
2018-12-13  ==>  SNUSAT-1B   42733   18087.155154   18347.263392
2018-12-13  ==>  SNUSAT-1A   42733   18087.155154   18347.263392
2018-12-13  ==>  SNUSAT-1B   42733   18087.155154   18347.263392
2018-12-14  ==>  OSIRIS-3U   43027   18087.168557   18348.906256
2018-12-18  ==>  HAVELSAT    42700   18087.135697   18352.023530
2018-12-21  ==>  CXBN-2      42704   18087.136478   18355.245327
2018-12-29  ==>  SOMP2       42701   18087.146059   18363.409437
2019-01-09  ==>  LILACSAT-1  42725   18087.145319   19009.026091
2019-01-18  ==>  BEEAGLESAT  42736   18087.095846   19018.932599
2019-02-01  ==>  CSUNSAT1    42715   18087.151414   19032.098625
2019-02-10  ==>  BIRD-J      42820   18086.929283   19041.313016
2019-02-13  ==>  BIRD-N      42824   18087.157248   19044.651773
2019-02-15  ==>  ZA-AEROSAT  42713   18087.108466   19046.028163
2019-02-17  ==>  PHOENIX     42706   18087.143817   19048.427624
2019-02-18  ==>  BIRD-M      42822   18086.950325   19049.639096
2019-02-19  ==>  AOXIANG-1   42735   18087.168204   19050.900142
2019-02-25  ==>  BIRD-B      42823   18086.950213   19056.464562
2019-02-27  ==>  BIRD-G      42821   18086.894679   19058.121687
2019-03-10  ==>  NJUST-1     42722   18087.125156   19069.753827
2019-03-30  ==>  TANUSHA-1   42911   18087.154592   19089.370893
2019-04-26  ==>  TANUSHA-2   42912   18087.131428   19116.609355
2019-05-27  ==>  TPU-120     42910   18087.128858   19147.926724
2019-07-05  ==>  BRICSAT     40655   18086.272927   19186.326012
2019-09-03  ==>  NSIGHT-1    42726   18087.133143   19246.317461
2019-09-03  ==>  SOMP        42726   18087.133143   19246.317461


 
calculations based on SatEvo

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