Gaofen 3
In orbit NORAD 41727 WYUP-8723-3132-6983-2409 China
2016
Launch
0
Observations all time
Gallery
1 41727U 16049A 26283.94495795 -.00000147 00000-0 -31412-4 0 9993
2 41727 98.4049 290.0053 0001295 100.6768 259.4567 14.42211139535336
Mean elements of every TLE set over the past 365 days, plotted against the epoch of the set. Each source is its own line; click it in the legend to hide it. A jump in altitude is a manoeuvre or a bad set; lines drifting apart are a disagreement between sources. “TLE age” is how many hours have passed since the epoch of the source's freshest set, plotted against when the set reached us, on a logarithmic scale. A set the source repeats unchanged does not reset the age.
Each TLE set is propagated with SGP4 to the epoch of the next set from the same source and compared with it, plotted against the epoch of the next set; the tooltip shows how many hours ahead the prediction ran. The logarithmic scale shows the size of the divergence and the tooltip its sign: plus along-track means the prediction is ahead of the satellite. This is how well the sets agree, not the true error: the reference is a TLE too, off by about a kilometre. An outlier is a manoeuvre between sets. Sets more than a week apart are not compared.
| Time of closest approach, UTC | Object 1 | Object 2 | Distance, km | Speed, km/s | Max. probability |
|---|---|---|---|---|---|
| 2026-10-11 13:13:54 |
GAOFEN-3
NORAD 41727 |
CZ-6A DEB
NORAD 64630 |
0.258 | 9.31 | 5.4e-05 |
| 2026-10-11 14:08:38 |
GAOFEN-3
NORAD 41727 |
COSMOS 2251 DEB
NORAD 39586 |
1.607 | 12.64 | 1.0e-06 |
| 2026-10-11 17:03:09 |
GAOFEN-3
NORAD 41727 |
FENGYUN 1C DEB
NORAD 30856 |
3.968 | 14.77 | 1.0e-07 |
| 2026-10-11 19:12:46 |
GAOFEN-3
NORAD 41727 |
COSMOS 2251 DEB
NORAD 35885 |
4.408 | 14.82 | 8.1e-08 |
| 2026-10-12 00:48:30 |
GAOFEN-3
NORAD 41727 |
NOAA 16 DEB
NORAD 41270 |
1.089 | 13.67 | 1.9e-06 |
| 2026-10-12 23:29:00 |
SHIYAN-5 (SY-5)
NORAD 39455 |
GAOFEN-3
NORAD 41727 |
1.433 | 13.96 | 1.0e-06 |
| 2026-10-13 03:32:59 |
GAOFEN-3
NORAD 41727 |
IRIDIUM 162
NORAD 43482 |
3.777 | 12.01 | 2.0e-07 |
| 2026-10-13 09:16:22 |
GAOFEN-3
NORAD 41727 |
FREGAT R/B
NORAD 59073 |
2.559 | 3.17 | 6.6e-07 |
| 2026-10-15 16:14:46 |
GAOFEN-3
NORAD 41727 |
COSMOS 2251 DEB
NORAD 34883 |
3.657 | 10.58 | 2.5e-07 |
| 2026-10-15 16:18:25 |
GAOFEN-3
NORAD 41727 |
PEGASUS DEB
NORAD 39923 |
3.125 | 15.00 | 1.5e-07 |
| 2026-10-16 01:27:44 |
GAOFEN-3
NORAD 41727 |
PEGASUS DEB
NORAD 39314 |
3.951 | 14.87 | 9.4e-08 |
| 2026-10-16 13:13:42 |
GAOFEN-3
NORAD 41727 |
FENGYUN 1C DEB
NORAD 29982 |
4.120 | 13.56 | 1.3e-07 |
Data: CelesTrak SOCRATES Plus, computed from TLEs of the public catalog. This is an estimate, not grounds for a manoeuvre: TLEs carry no covariance, and the maximum probability assumes a position error.
