Research Article
Lifetime Estimation of the Upper Stage of GSAT-14 in Geostationary Transfer Orbit
Table 4
Observed and predicted mean apogee altitude for zone D.
| | TLE epoch (UTC) | Mean apogee observed (km) | Mean apogee predicted (km) | Error (km) |
| | March 24, 2014, 06:31 | 34877.94531 | 34876.13281 | 1.813 | | March 25, 2014, 02:58 | 34839.96094 | 34850.94141 | −10.980 | | March 26, 2014, 19:43 | 34801.82031 | 34802.17969 | −0.359 | | March 29, 2014, 08:41 | 34723.11328 | 34727.16016 | −4.047 | | March 31, 2014, 01:15 | 34665.50781 | 34665.56250 | −0.055 |
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