The Dexes / Satellite Decay / 52991
CelestialObjectDex · Satellite Decay
STARLINK-4285
52991 · 2026-04-03T10:44:26Z
Fixes
213
Observations
213
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T10:44:26.513376+00:00 |
|---|---|
| end_utc | 2026-08-23T12:31:36.372000+00:00 |
| family | celestialdex |
| norad_id | 52,991 |
| object_name | STARLINK-4285 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.161 |
| n_snaps | 213 |
| span_days | 142.074 |
| mean_motion_first | 15.088 |
| mean_motion_last | 15.335 |
| delta_mean_motion | 0.247 |
| altitude_first_km | 539.718 |
| altitude_last_km | 465.245 |
| decay_rate_rev_day2 | 0.003 |
| altitude_decay_km_day | -0.773 |
| 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 | 2026-04-03T10:44:26.513376+00:00 |
| last_utc | 2026-08-23T12:31:36.372000+00:00 |
| last_fix_utc | 2026-08-23T12:31:36.372000+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T10:44:26.513376+00:00","mean_motion":15.08848182,"altitude_km":539.718,"eccentricity":0.00013368,"inclination_deg":53.219},{"utc":"2026-04-04T02:38:19.050144+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/52991.json