Forecast of Conjunctions: 50 Latest Payloads vs. All (31718) Objects
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Time of Closest Approach (TCA), UTC
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NORAD ID 1
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Object Name 1
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NORAD ID 2
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Object Name 2
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Distance at TCA, km
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RIC Distance, km
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Rel.Speed
km/s
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2026-10-09 12:26:50.160
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60308
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STARLINK-11192
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100777
↑
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STARLINK-38409
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2.863
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2.771, 0.442, 0.567
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12.1085
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2026-10-09 16:52:49.254
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61883
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STARLINK-11383
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100776
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STARLINK-38400
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4.546
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4.145, 1.815, -0.435
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3.5404
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2026-10-09 17:23:54.751
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60666
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CZ-6A DEB
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100825
↑
↺
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YAOGAN-40 O4C
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4.201
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2.622, -0.592, 3.228
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14.6284
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2026-10-09 17:46:24.703
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48609
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FALCON 9 DEB
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100899
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JACK-006
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4.251
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-3.869, -1.413, -1.055
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9.1112
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2026-10-09 17:57:27.096
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58562
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ALISIO-1
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100887
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FOREST-20 ARAUCARIA
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2.022
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0.045, 2.021, -0.050
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0.4411
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2026-10-09 18:10:35.554
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61886
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STARLINK-11351
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100777
↑
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STARLINK-38409
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3.043
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1.677, -2.468, 0.594
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3.5924
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2026-10-09 18:23:51.581
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60915
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STARLINK-11271
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100779
↓
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STARLINK-38385
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4.812
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3.958, 1.871, 1.996
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11.2009
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2026-10-09 19:23:47.718
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44961
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STARLINK-1080
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100879
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STARLINK-40095
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4.148
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-2.077, 3.344, -1.308
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5.6256
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2026-10-09 20:31:16.078
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23608
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ARIANE 40+3 R/B
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100779
↓
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STARLINK-38385
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4.705
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-2.578, -2.052, 3.358
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13.1234
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2026-10-09 21:04:55.682
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28810
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INDEX
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100892
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CRIMSON-1
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2.693
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-2.486, 0.899, -0.514
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7.5668
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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).
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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.
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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.
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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.
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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.
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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.
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