The Dexes / Satellite Decay / 51989
CelestialObjectDex · Satellite Decay
STARLINK-3642
51989 · 2026-04-02T19:44:12Z
Fixes
207
Observations
207
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T19:44:12.302304+00:00 |
|---|---|
| end_utc | 2026-08-09T19:45:42.637824+00:00 |
| family | celestialdex |
| norad_id | 51,989 |
| object_name | STARLINK-3642 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.184 |
| n_snaps | 207 |
| span_days | 129.001 |
| mean_motion_first | 15.089 |
| mean_motion_last | 15.344 |
| delta_mean_motion | 0.255 |
| altitude_first_km | 539.680 |
| altitude_last_km | 462.818 |
| decay_rate_rev_day2 | 0.003 |
| altitude_decay_km_day | -0.825 |
| decay_note | mean_motion slope (rev/day^2) and altitude slope (km/day) from least-squares fit of measured GP elements; altitude from Kepler a=(GM/n^2)^(1/3) - R_earth |
| first_utc | 2026-04-02T19:44:12.302304+00:00 |
| last_utc | 2026-08-09T19:45:42.637824+00:00 |
| last_fix_utc | 2026-08-09T19:45:42.637824+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T19:44:12.302304+00:00","mean_motion":15.08860891,"altitude_km":539.68,"eccentricity":0.00014701,"inclination_deg":53.218},{"utc":"2026-04-03T17:59:38.041440+00:00","mean_motion":15 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/51989.json