The Dexes / Satellite Decay / 53559
CelestialObjectDex · Satellite Decay
STARLINK-4508
53559 · 2026-04-03T15:04:04Z
Fixes
143
Observations
143
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:04:04.124928+00:00 |
|---|---|
| end_utc | 2026-06-08T23:19:57.660096+00:00 |
| family | celestialdex |
| norad_id | 53,559 |
| object_name | STARLINK-4508 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.219 |
| n_snaps | 143 |
| span_days | 66.344 |
| mean_motion_first | 15.089 |
| mean_motion_last | 16.448 |
| delta_mean_motion | 1.359 |
| altitude_first_km | 539.687 |
| altitude_last_km | 153.188 |
| decay_rate_rev_day2 | 0.019 |
| altitude_decay_km_day | -5.398 |
| 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 | 2026-04-03T15:04:04.124928+00:00 |
| last_utc | 2026-06-08T23:19:57.660096+00:00 |
| last_fix_utc | 2026-06-08T23:19:57.660096+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:04:04.124928+00:00","mean_motion":15.088586,"altitude_km":539.687,"eccentricity":0.00015614,"inclination_deg":53.2197},{"utc":"2026-04-04T21:16:26.351040+00:00","mean_motion":15 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/53559.json