Forecast of Conjunctions: 50 Latest Payloads vs. All (31718) Objects

Time of Closest Approach (TCA), UTC NORAD ID 1 Object Name 1 NORAD ID 2 Object Name 2 Distance at TCA, km RIC Distance, km Rel.Speed
km/s
2026-10-04 23:43:21.592 62405 OBJECT AE 100865 ↑ STARLINK-40090 4.896 4.621, -1.594, -0.273 2.6380
2026-10-05 00:10:27.362 59949 ↓ ↻ STARLINK-11138 100771 ↑ ← STARLINK-38339 3.874 3.768, 0.586, -0.685 11.6859
2026-10-05 00:16:25.692 60992 ↑ STARLINK-11282 100761 ↑ STARLINK-38402 4.228 3.838, 1.387, -1.108 9.5858
2026-10-05 00:31:38.097 59950 STARLINK-11130 100774 ↑ STARLINK-38447 3.703 3.486, 0.811, -0.949 11.6837
2026-10-05 00:47:33.896 45048 STARLINK-1134 100769 ↑ STARLINK-38388 3.727 3.264, -1.171, 1.365 11.6487
2026-10-05 01:17:49.029 62474 ↑ ↻ → STARLINK-11502 100765 ↑ STARLINK-38446 4.616 2.166, 3.933, -1.070 4.0229
2026-10-05 05:15:24.998 51775 STARLINK-3620 100874 ↓ STARLINK-40078 4.148 -3.842, 1.256, -0.928 9.1721
2026-10-05 06:00:35.942 51775 STARLINK-3620 100874 ↓ STARLINK-40078 2.256 -0.866, -1.677, -1.236 9.1665
2026-10-05 06:32:57.991 61878 STARLINK-11314 100773 ↑ STARLINK-38386 4.264 3.107, 2.871, -0.537 2.7863
2026-10-05 06:35:29.862 45397 STARLINK-1307 100763 ↓ STARLINK-38444 4.677 -4.215, 1.171, 1.656 12.5548
Our orbit propagation model is based on SGP4/SDP4 and uses data sourced from space-track.org. Object 1 and Object 2 are arranged by their NORAD ID (NORAD_CAT_ID).
The "Within ellipsoid" option allows you to check if the predicted miss distance is within the RIC (Radial, In-track, Cross-track) ellipsoid, centered on either Object 1 or Object 2 at TCA, with specified semi-axis lengths.
To exclude long-lasting conjunctions of ride-sharing satellites, you can use the "Relative Speed > 0.01 km/s" filter. Additionally, connected modules of ISS and CSS are not included in the forecast. Some ride-sharing satellites may also be temporarily excluded from the forecast.
Gray background indicates a >1 km difference between the latest published position of a conjunction object and the position propagated from the TLE used for conjunction detection, indicating that the record may no longer be current.
If comparison of the velocity vector and Keplerian orbital parameters from the latest published TLE with the corresponding values propagated from the TLE used for conjunction detection shows a deviation exceeding ±3× the background RMSE, indicating probable maneuvering, the following symbols identify the orbital parameter and direction of the probable change:
↑ ↓ - semimajor axis increase/decrease
↺ ↻ - inclination increase/decrease
→ ← - RAAN increase/decrease
↗ - probable maneuvering detected based on a propagated-versus-published velocity-vector difference exceeding 3× the background RMSE, while the semimajor axis, inclination, and RAAN deviations each remain within ±3× their respective background RMSEs.
Please note that the "Selected Objects vs. All" option and Email Notifications are only available for registered users, with registration currently being free of charge.