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: 2018-02-17 10:18:08.960 UTC
10.8 cm flux = 71.000000

date             satellite   norad   epoch          decay

2018-03-04  ==>  STARS-CM    41895   18047.700345   18063.362641
2018-03-04  ==>  STARS-CD    41895   18047.700345   18063.362641
2018-03-11  ==>  COLUMBIA    42702   18048.013105   18070.272218
2018-04-05  ==>  ATLANTIS    42737   18047.777082   18095.881093
2018-04-29  ==>  SGSAT       42703   18048.130019   18119.520567
2018-07-15  ==>  CHALLENGER  42721   18048.126758   18196.625757
2018-08-14  ==>  DUTHSAT     42724   18048.054169   18226.442253
2018-08-23  ==>  LINK        42714   18048.123859   18235.111521
2018-08-23  ==>  CSUNSAT1    42714   18048.123859   18235.111521
2018-10-03  ==>  EXALTA-1    42734   18048.122936   18276.159166
2018-10-26  ==>  VELOX-III   41935   18047.736911   18299.064988
2018-10-26  ==>  ICECUBE     42705   18048.160044   18299.520558
2018-10-30  ==>  UNSW-EC0    42723   18048.021866   18303.492982
2018-10-31  ==>  HOOPOE      42718   18048.181175   18304.563641
2018-11-14  ==>  UPSAT       42716   18047.783415   18318.886099
2018-11-14  ==>  INSPIRE-2   42731   18047.798729   18318.863647
2018-12-12  ==>  POLYITAN-2  42732   18048.143942   18346.292739
2018-12-29  ==>  QBITO       42728   18048.105066   18363.584949
2019-01-03  ==>  AALTO-2     42729   18048.035207   19003.994573
2019-01-04  ==>  ITF-2       41932   18047.763659   19004.853875
2019-01-06  ==>  HAVELSAT    42700   18048.145234   19006.558739
2019-01-06  ==>  XCUBESAT    42707   18048.024253   19006.117643
2019-01-14  ==>  SOMP2       42701   18048.139846   19014.517802
2019-01-17  ==>  OSIRIS-3U   43027   18048.135340   19017.173692
2019-01-25  ==>  SPACECUBE   42717   18048.008389   19025.033750
2019-02-03  ==>  QBEE        42708   18047.986590   19034.587895
2019-02-19  ==>  SUSAT       42730   18048.013443   19050.156074
2019-02-23  ==>  SNUSAT-1A   42733   18048.014975   19054.244141
2019-02-23  ==>  SNUSAT-1B   42733   18048.014975   19054.244141
2019-02-23  ==>  SNUSAT-1A   42733   18048.014975   19054.244141
2019-02-23  ==>  SNUSAT-1B   42733   18048.014975   19054.244141
2019-03-01  ==>  CXBN-2      42704   18047.817157   19060.361495
2019-03-02  ==>  BEEAGLESAT  42736   18048.128759   19061.048728
2019-03-17  ==>  LILACSAT-1  42725   18047.994339   19076.084582
2019-04-05  ==>  BRICSAT     40655   18047.343477   19095.073624
2019-04-06  ==>  CSUNSAT1    42715   18048.053690   19096.345241
2019-04-10  ==>  ZA-AEROSAT  42713   18048.131015   19100.065133
2019-04-24  ==>  AOXIANG-1   42735   18048.114703   19114.070907
2019-04-26  ==>  PHOENIX     42706   18048.002240   19116.316228
2019-04-26  ==>  BIRD-B      42823   18047.830435   19116.817355
2019-05-02  ==>  TANUSHA-1   42911   18048.121630   19122.485383
2019-05-04  ==>  BIRD-M      42822   18047.829334   19124.085953
2019-05-05  ==>  NJUST-1     42722   18048.130594   19125.920270
2019-05-18  ==>  BIRD-N      42824   18047.778547   19138.003292
2019-05-22  ==>  BIRD-J      42820   18047.813024   19142.145699
2019-05-28  ==>  BIRD-G      42821   18047.770402   19148.836466
2019-06-04  ==>  TANUSHA-2   42912   18048.088535   19155.148560
2019-06-04  ==>  AOXIANG-1   42912   18048.088535   19155.148560
2019-08-30  ==>  TPU-120     42910   18047.889933   19242.044900
2020-09-07  ==>  NSIGHT-1    42726   18048.051886   20251.686408

 
calculations based on SatEvo

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