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.

Table below shows predicted decay date

last update: 2020-04-26 08:56:33.860 UTC
10.8 cm flux = 69.000000

date             satellite   norad   epoch          decay

2020-04-25  ==>  NSIGHT-1    42726   20116.076430   20116.231781
2020-06-15  ==>  UBAKUSAT    43466   20116.586027   20167.650775
2020-08-31  ==>  TANUSHA-3   43597   20116.759712   20244.837768
2020-09-03  ==>  TANUSHA-4   43598   20116.800202   20247.707230
2020-09-22  ==>  SMOG-P      44832   20116.918993   20266.797491
2020-10-18  ==>  FOSSASAT-1  44829   20116.597591   20292.034545
2020-10-18  ==>  ATL-1       44830   20116.887739   20292.635229
2020-10-19  ==>  ENDUROSAT   43551   20116.718760   20293.118792
2020-10-27  ==>  TRSI        44831   20116.889113   20301.523589
2020-12-01  ==>  BIRD-BT     43591   20116.514331   20336.757976
2020-12-21  ==>  BIRD-MY     43589   20116.671486   20356.636155
2021-01-20  ==>  SIRIUSSAT-1 43595   20116.680701   21020.477703
2021-01-27  ==>  BIRD-PH     43590   20116.918384   21027.911281
2021-02-17  ==>  EQUISAT     43552   20116.693245   21048.921235
2021-02-19  ==>  PW-SAT2     43814   20117.163501   21050.706368
2021-02-24  ==>  OCULUS-ASR  44356   20116.921216   21055.410391
2021-03-01  ==>  SIRIUSSAT-2 43596   20116.802530   21060.516042
2021-03-28  ==>  UBAKUSAT    43467   20116.917212   21087.952357
2021-04-20  ==>  SWIATOWID   44426   20117.194668   21110.377914
2021-05-08  ==>  TW-1C       40926   20117.120913   21128.844272
2021-06-23  ==>  TW-1B       40927   20117.129343   21174.655975
2021-07-25  ==>  DELPHINI    44030   20116.728025   21206.663882
2021-11-15  ==>  CP9         44360   20116.972960   21319.987140
2022-02-02  ==>  ENTRYSAT    44429   20116.870348   22033.161880
2022-03-20  ==>  NEPALISAT   44331   20116.635234   22079.370808
2022-04-22  ==>  RAAVANA     44329   20116.641872   22112.911019
2022-06-20  ==>  SPOOQY-1    44332   20116.764128   22171.128334
2022-07-11  ==>  UGUISU      44330   20116.780188   22192.527713
2022-11-26  ==>  PSAT        40654   20115.330578   22330.328528
2022-12-04  ==>  BRICSAT2    44355   20116.924496   22338.964435

 
calculations based on SatEvo

2 thoughts on “Decay”

  1. 2019-02-27 ==> FOX-1C 42700 19037.681851 19058.483559
    2019-02-27 ==> HAVELSAT 42700 19037.681851 19058.483559

    FOX-1C/AO-95 is object 43770.

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