SHERPA-LTC2
In orbit NORAD 53754 YTUM-9506-8517-5231-7089 United States of America
2022
Launch
15
Observations all time
Gallery
1 53754U 22107BG 26282.94862812 .00006738 00000-0 33768-3 0 9990
2 53754 53.2326 94.1795 0391878 187.1859 172.3398 14.70508074219424
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 |
|---|---|---|---|---|---|
| 2026-10-10 20:24:02 |
SHERPA-LTC2
NORAD 53754 |
CZ-6A DEB
NORAD 55895 |
3.779 | 11.89 | 2.0e-07 |
| 2026-10-11 03:07:00 |
SHERPA-LTC2
NORAD 53754 |
DISCO-2
NORAD 68431 |
1.510 | 14.45 | 8.8e-07 |
| 2026-10-11 10:50:07 |
COSMOS 2554
NORAD 52202 |
SHERPA-LTC2
NORAD 53754 |
4.392 | 12.04 | 1.4e-07 |
| 2026-10-11 22:01:45 |
SHERPA-LTC2
NORAD 53754 |
SL-3 R/B
NORAD 7275 |
3.500 | 13.48 | 4.9e-07 |
| 2026-10-12 12:57:36 |
SHERPA-LTC2
NORAD 53754 |
FENGYUN 1C DEB
NORAD 46451 |
4.434 | 13.93 | 9.9e-08 |
| 2026-10-12 19:03:46 |
SHERPA-LTC2
NORAD 53754 |
OPS 0203 (DMSP 5A F2)
NORAD 4512 |
2.111 | 14.12 | 5.2e-07 |
| 2026-10-12 19:57:43 |
SHERPA-LTC2
NORAD 53754 |
STARLINK-36922
NORAD 68123 |
2.348 | 14.72 | 1.0e-05 |
| 2026-10-12 23:45:16 |
SHERPA-LTC2
NORAD 53754 |
CYBERCUBE
NORAD 69938 |
4.853 | 12.06 | 1.2e-07 |
| 2026-10-14 00:06:37 |
SHERPA-LTC2
NORAD 53754 |
STARLINK-37760
NORAD 69222 |
0.952 | 13.86 | 7.7e-05 |
| 2026-10-14 01:55:03 |
SHERPA-LTC2
NORAD 53754 |
UNKNOWN
NORAD 87164 |
2.614 | 8.62 | 5.4e-07 |
| 2026-10-14 16:25:13 |
SHERPA-LTC2
NORAD 53754 |
STARLINK-37647
NORAD 69207 |
3.385 | 7.38 | 1.0e-05 |
| 2026-10-15 11:37:01 |
SHERPA-LTC2
NORAD 53754 |
STARLINK-36849
NORAD 68304 |
3.860 | 6.12 | 8.3e-06 |
| 2026-10-15 21:48:32 |
SHERPA-LTC2
NORAD 53754 |
STARLINK-34746
NORAD 64847 |
3.111 | 9.75 | 1.1e-05 |
| 2026-10-16 02:41:51 |
SHERPA-LTC2
NORAD 53754 |
STARLINK-5205
NORAD 54202 |
3.992 | 0.24 | 7.6e-06 |
| 2026-10-16 18:08:04 |
SHERPA-LTC2
NORAD 53754 |
METEOR 2-11 DEB
NORAD 43310 |
1.891 | 12.68 | 7.2e-07 |
| 2026-10-16 23:23:42 |
SHERPA-LTC2
NORAD 53754 |
CZ-6A DEB
NORAD 56653 |
4.269 | 7.52 | 2.1e-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.
