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Events

Orbital events timeline

Every change detected by SatelliteIndex connectors, newest first: payloads catalogued from a launch, decays, orbit changes, decommissions. Each event carries its source and a derived confidence.

Latest event 8 h ago · 23 events in view

Today · 17 Sept 2026

8 events
  1. Orbit change
    MMS 4 raised its orbit

    Perigee 10677 → 10680 km, apogee 172327 → 172454 km between element sets (epoch 2026-09-17 08:00 UTC).

    CelesTrak70%
  2. Orbit change
    MMS 3 raised its orbit

    Perigee 10678 → 10681 km, apogee 172326 → 172448 km between element sets (epoch 2026-09-17 08:00 UTC).

    CelesTrak70%
  3. Orbit change
    MMS 2 raised its orbit

    Perigee 10662 → 10665 km, apogee 172346 → 172469 km between element sets (epoch 2026-09-17 08:00 UTC).

    CelesTrak70%
  4. Orbit change
    MMS 1 raised its orbit

    Perigee 10690 → 10693 km, apogee 172318 → 172437 km between element sets (epoch 2026-09-17 08:00 UTC).

    CelesTrak70%
  5. Orbit change
    STARLINK-37982 raised its orbit

    Perigee 354 → 418 km, apogee 357 → 420 km between element sets (epoch 2026-09-17 07:04 UTC).

    CelesTrak70%
  6. Orbit change
    STARLINK-37741 raised its orbit

    Perigee 331 → 418 km, apogee 337 → 420 km between element sets (epoch 2026-09-17 06:51 UTC).

    CelesTrak70%
  7. Orbit change
    STARLINK-37813 raised its orbit

    Perigee 343 → 418 km, apogee 344 → 420 km between element sets (epoch 2026-09-17 05:42 UTC).

    CelesTrak70%
  8. Orbit change
    STARLINK-36776 raised its orbit

    Perigee 343 → 372 km, apogee 345 → 375 km between element sets (epoch 2026-09-17 05:16 UTC).

    CelesTrak70%

Yesterday · 16 Sept 2026

8 events
  1. Orbit change
    DUCHIFAT-1 lowered its orbit

    Perigee 211 → 185 km, apogee 224 → 201 km between element sets (epoch 2026-09-16 20:44 UTC).

    CelesTrak70%
  2. Orbit change
    SNAP-3 EDDIE lowered its orbit

    Perigee 192 → 165 km, apogee 213 → 183 km between element sets (epoch 2026-09-16 16:08 UTC).

    CelesTrak70%
  3. Orbit change
    STARLINK-5500 lowered its orbit

    Perigee 570 → 539 km, apogee 574 → 575 km between element sets (epoch 2026-09-16 15:45 UTC).

    CelesTrak70%
  4. Orbit change
    STARLINK-35269 lowered its orbit

    Perigee 534 → 505 km, apogee 535 → 508 km between element sets (epoch 2026-09-16 08:08 UTC).

    CelesTrak70%
  5. Orbit change
    STARLINK-38302 raised its orbit

    Perigee 340 → 367 km, apogee 349 → 369 km between element sets (epoch 2026-09-16 07:17 UTC).

    CelesTrak70%
  6. Orbit change
    CXO raised its orbit

    Perigee 12232 → 12261 km, apogee 136587 → 136573 km between element sets (epoch 2026-09-16 06:57 UTC).

    • satelliteCXO#25867
    CelesTrak70%
  7. Orbit change
    STARLINK-37394 raised its orbit

    Perigee 332 → 378 km, apogee 335 → 379 km between element sets (epoch 2026-09-16 05:50 UTC).

    CelesTrak70%
  8. Orbit change
    SBIRS GEO-4 (USA 273) lowered its orbit

    Perigee 35789 → 35778 km, apogee 35951 → 35795 km between element sets (epoch 2026-09-16 05:02 UTC).

    CelesTrak70%

15 Sept 2026

7 events
  1. Orbit change
    STARLINK-37811 raised its orbit

    Perigee 360 → 418 km, apogee 361 → 419 km between element sets (epoch 2026-09-15 23:09 UTC).

    CelesTrak70%
  2. Orbit change
    QIANFAN-233 raised its orbit

    Perigee 1016 → 1015 km, apogee 1071 → 1098 km between element sets (epoch 2026-09-15 21:30 UTC).

    CelesTrak70%
  3. Orbit change
    USA 176 (DSP 22) raised its orbit

    Perigee 35987 → 36014 km, apogee 36041 → 36151 km between element sets (epoch 2026-09-15 18:34 UTC).

    CelesTrak70%
  4. Orbit change
    STARLINK-1598 lowered its orbit

    Perigee 182 → 151 km, apogee 195 → 160 km between element sets (epoch 2026-09-15 14:12 UTC).

    CelesTrak70%
  5. Orbit change
    ASBM-2 lowered its orbit

    Perigee 7691 → 7648 km, apogee 43903 → 43946 km between element sets (epoch 2026-09-15 13:47 UTC).

    CelesTrak70%
  6. Orbit change
    STARLINK-32955 lowered its orbit

    Perigee 233 → 193 km, apogee 258 → 213 km between element sets (epoch 2026-09-15 12:20 UTC).

    CelesTrak70%
  7. Orbit change
    SBIRS GEO-4 (USA 273) lowered its orbit

    Perigee 35913 → 35789 km, apogee 35953 → 35951 km between element sets (epoch 2026-09-15 10:13 UTC).

    CelesTrak70%

23 results

Times are UTC. Confidence is a derived score, not a measurement. Event types that no connected source produces (e.g. regulatory approvals) are simply absent — nothing is simulated.