Forecast of Conjunctions: 50 Latest Payloads vs. All (31204) 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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2026-09-27 16:25:28.761
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67197
↑
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STARLINK-36283
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100746
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STRIX-10
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0.829
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-0.829, -0.005, 0.002
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10.6492
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2026-09-27 16:27:40.984
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55654
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STARLINK-5070
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100746
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STRIX-10
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4.463
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0.988, 2.954, -3.196
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11.1156
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2026-09-27 16:43:45.042
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29977
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FENGYUN 1C DEB
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100697
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QIANFAN-244
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4.840
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2.167, 2.632, 3.435
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11.6799
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2026-09-27 16:59:38.419
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54959
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CZ-6A DEB
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100694
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QIANFAN-241
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3.455
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-3.292, 0.575, -0.876
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12.3213
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2026-09-27 17:33:32.917
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31972
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FENGYUN 1C DEB
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100699
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QIANFAN-246
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4.843
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4.783, -0.701, -0.301
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6.2413
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2026-09-27 17:55:41.484
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57768
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WILDFIRE 8
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100693
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QIANFAN-240
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1.569
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1.054, -0.724, -0.910
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11.5405
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2026-09-27 18:23:32.187
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58918
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OBJECT B
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100742
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TIANYI 52
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2.268
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1.835, -1.211, -0.558
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6.3830
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2026-09-27 18:27:48.010
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17638
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COSMOS 1275 DEB
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100696
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QIANFAN-243
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4.500
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4.298, -0.260, 1.310
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14.5037
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2026-09-27 19:00:01.702
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37108
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COSMOS 2251 DEB
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100690
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SENTINEL-3C
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1.880
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-1.877, 0.092, 0.066
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9.0959
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2026-09-27 19:21:34.430
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68985
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IRIDE-MS2-HEO-13
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100611
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PLATFORM-6
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4.343
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3.552, -0.329, 2.477
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14.9701
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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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