The Dexes / Satellite Decay / 53017
CelestialObjectDex · Satellite Decay
STARLINK-4281
53017 · 2026-04-03T15:42:57Z
Fixes
291
Observations
291
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:42:57.414816+00:00 |
|---|---|
| end_utc | 2026-08-09T20:00:01.999008+00:00 |
| family | celestialdex |
| norad_id | 53,017 |
| object_name | STARLINK-4281 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.214 |
| n_snaps | 291 |
| span_days | 128.179 |
| mean_motion_first | 15.094 |
| mean_motion_last | 15.529 |
| delta_mean_motion | 0.435 |
| altitude_first_km | 538.134 |
| altitude_last_km | 408.343 |
| decay_rate_rev_day2 | 0.005 |
| altitude_decay_km_day | -1.437 |
| 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 | 2026-04-03T15:42:57.414816+00:00 |
| last_utc | 2026-08-09T20:00:01.999008+00:00 |
| last_fix_utc | 2026-08-09T20:00:01.999008+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:42:57.414816+00:00","mean_motion":15.09366623,"altitude_km":538.134,"eccentricity":0.00013494,"inclination_deg":53.2186},{"utc":"2026-04-03T20:28:50.581344+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/53017.json