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: 2020-01-06 20:34:14.840 UTC
10.8 cm flux = 71.000000

date             satellite   norad   epoch          decay

2020-02-25  ==>  IRAZU       43468   20006.456907   20056.103056
2020-04-05  ==>  NSIGHT-1    42726   20006.403202   20096.041531
2020-05-12  ==>  UBAKUSAT    43466   20006.457185   20133.832951
2020-07-09  ==>  TANUSHA-3   43597   20006.491802   20191.597281
2020-08-12  ==>  TANUSHA-4   43598   20005.816959   20225.524427
2020-09-10  ==>  SMOG-P      44832   20006.122447   20254.200949
2020-09-14  ==>  BIRD-BT     43591   20006.315241   20258.528825
2020-09-18  ==>  BIRD-MY     43589   20006.466789   20262.468811
2020-10-18  ==>  ENDUROSAT   43551   20005.791955   20292.843331
2020-10-23  ==>  FOSSASAT-1  44829   20005.870206   20297.521217
2020-10-30  ==>  UBAKUSAT    43467   20006.501902   20304.450549
2020-11-04  ==>  BIRD-PH     43590   20005.376487   20309.878898
2020-11-21  ==>  TRSI        44831   20005.421827   20326.401058
2020-11-28  ==>  ATL-1       44830   20006.317093   20333.086399
2020-12-24  ==>  SIRIUSSAT-1 43595   20006.174544   20359.360574
2021-01-02  ==>  SIRIUSSAT-2 43596   20005.587793   21002.493205
2021-01-26  ==>  EQUISAT     43552   20005.816804   21026.001233
2021-02-21  ==>  OCULUS-ASR  44356   20006.236614   21052.822257
2021-06-02  ==>  DELPHINI    44030   20005.571943   21153.245826
2021-07-02  ==>  PW-SAT2     43814   20006.454912   21183.635918
2021-07-19  ==>  TW-1C       40926   20006.230595   21200.382567
2021-08-30  ==>  TW-1B       40927   20006.400394   21242.243972
2021-10-11  ==>  CP9         44360   20006.133168   21284.318415
2021-11-11  ==>  SWIATOWID   44426   20006.446864   21315.855365
2022-01-14  ==>  SPOOQY-1    44332   20006.475184   22014.567438
2022-02-05  ==>  ECAMSAT     43019   20006.353014   22036.424051
2022-03-29  ==>  ENTRYSAT    44429   20005.879047   22088.590771
2022-06-13  ==>  UGUISU      44330   20006.166469   22164.402266
2022-07-05  ==>  NEPALISAT   44331   20005.899327   22186.793468
2022-08-03  ==>  RAAVANA     44329   20005.582420   22215.566707
2022-08-30  ==>  BRICSAT2    44355   20005.711779   22242.897804

 
calculations based on SatEvo

One thought 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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