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: 2017-08-30 19:55:36.340 UTC
10.8 cm flux = 84.000000

date             satellite   norad   epoch          decay

2017-09-05  ==>  INFLATESAIL 42770   17242.622151   17248.459403
2017-09-22  ==>  NODES-2     41477   17242.507661   17265.954549
2017-09-27  ==>  NODES-1     41478   17242.529303   17270.404604
2018-01-04  ==>  STARS-CM    41895   17242.365605   18004.439047
2018-01-04  ==>  STARS-CD    41895   17242.365605   18004.439047
2018-01-23  ==>  COLUMBIA    42702   17242.411533   18023.129286
2018-01-28  ==>  ATLANTIS    42737   17242.403123   18028.899053
2018-03-02  ==>  SGSAT       42703   17242.442011   18061.418936
2018-04-30  ==>  CHALLENGER  42721   17242.431819   18120.161554
2018-05-12  ==>  DUTHSAT     42724   17242.439967   18132.196106
2018-05-13  ==>  LINK        42714   17242.435009   18133.867369
2018-05-13  ==>  INSPIRE-2   42731   17242.000856   18133.563424
2018-05-15  ==>  ICECUBE     42705   17242.423236   18135.120785
2018-06-13  ==>  UPSAT       42716   17242.420542   18164.695006
2018-06-21  ==>  EXALTA-1    42734   17242.450007   18172.180763
2018-07-17  ==>  VELOX-III   41935   17242.036920   18198.436794
2018-07-20  ==>  UNSW-EC0    42723   17242.452678   18201.338738
2018-07-20  ==>  POLYITAN-2  42732   17242.389893   18201.393535
2018-07-23  ==>  HAVELSAT    42700   17242.418872   18204.974678
2018-07-26  ==>  SNUSAT-1A   42733   17242.396530   18207.618133
2018-07-26  ==>  SNUSAT-1B   42733   17242.396530   18207.618133
2018-07-27  ==>  HOOPOE      42718   17242.428131   18208.555411
2018-07-28  ==>  PHOENIX     42706   17242.423749   18209.570103
2018-08-01  ==>  QBITO       42728   17242.392333   18213.047827
2018-08-01  ==>  SOMP2       42728   17242.392333   18213.047827
2018-08-05  ==>  SUSAT       42730   17242.395725   18217.266252
2018-08-14  ==>  CXBN-2      42704   17242.434467   18226.964857
2018-08-18  ==>  SOMP2       42701   17242.427284   18230.983537
2018-08-19  ==>  XCUBESAT    42707   17242.424240   18231.281242
2018-08-24  ==>  QBEE        42708   17242.426849   18236.254175
2018-08-25  ==>  AALTO-2     42729   17242.520513   18237.740795
2018-08-29  ==>  LILACSAT-1  42725   17242.405675   18241.389915
2018-09-14  ==>  CSUNSAT1    42715   17242.454058   18257.476406
2018-09-15  ==>  UCLSAT      42717   17242.499524   18258.937169
2018-09-15  ==>  SPACECUBE   42717   17242.499524   18258.937169
2018-09-16  ==>  ITF-2       41932   17241.617556   18259.506312
2018-09-26  ==>  BIRD-N      42824   17242.522618   18269.859412
2018-09-30  ==>  NJUST-1     42722   17242.403980   18273.096722
2018-10-18  ==>  ZA-AEROSAT  42713   17242.447831   18291.552111
2018-10-20  ==>  BEEAGLESAT  42736   17242.015083   18293.582531
2018-11-13  ==>  BIRD-B      42823   17241.685764   18317.558844
2018-11-22  ==>  BIRD-J      42820   17241.681957   18326.562066
2018-11-29  ==>  BIRD-M      42822   17241.684304   18333.965612
2018-12-07  ==>  AOXIANG-1   42735   17241.824021   18341.310468
2018-12-09  ==>  BIRD-G      42821   17241.683565   18343.010072
2019-09-04  ==>  NSIGHT-1    42726   17242.427458   19247.611637
2019-11-11  ==>  BRICSAT     40655   17242.395456   19315.630393

 
calculations based on SatEvo

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