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Starlink satellite close conjunction forecast

Results from latest analysis of positions : searching for near misses (< 1 km) over the next 24 hours. Includes nearest approaches to ISS and CSS regardless of distance

close conjunctions forecast
UTC Distance (km) Obj1 Obj2 ΔAlt kmh

2025-04-19T15:06
0.67259024618670.2012455

2025-04-19T15:13
98.81548274
(CSS)
5963698.461787

2025-04-19T15:26
131.93725544
(ISS)
48278131.552754

2025-04-19T15:28
0.76159262621490.253884

2025-04-19T16:23
0.81351795538270.6610911

2025-04-19T16:42
0.48753177532880.237419

2025-04-19T17:30
0.70750831533880.704013

2025-04-19T18:33
0.76853529547950.473951

2025-04-19T18:35
0.85650170539160.223732

2025-04-19T18:36
0.25850834537120.2216254

2025-04-19T19:12
0.71247357485640.298145

2025-04-19T20:48
0.41953852540840.347005

2025-04-19T21:15
0.58450187538580.2514380

2025-04-19T22:57
0.67552337526000.4114599

2025-04-20T00:16
0.53253628540610.5212432

2025-04-20T00:41
0.68952089525610.304009

2025-04-20T01:12
0.72059554619140.471037

2025-04-20T01:15
0.53359490629260.4918435

2025-04-20T01:17
0.76158934601570.062319

2025-04-20T02:02
0.44050200526100.185797

2025-04-20T02:35
0.88744933582250.3011142

2025-04-20T02:38
0.81054065548060.703802

2025-04-20T02:51
0.74751140537180.4713056

Forecast completed at: Sat, 19 Apr 2025 02:57:03 PM UTC

Twice a day the latest TLEs (fixes) are propagated forward if necessary by 1/100th of a second steps to identify the closest any pair of satellites will be to each other. Since TLEs contain a small amount of position uncertainty and the orbit propagation model is also slightly imperfect the identified near pass may be inaccurate. In addition, satellites undergoing thrust currently will not be placed correctly hours into the future.