The Dexes / Satellite Decay / 54187
CelestialObjectDex · Satellite Decay
STARLINK-5240
54187 · 2026-04-03T14:50:49Z
Fixes
207
Observations
207
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:50:49.956864+00:00 |
|---|---|
| end_utc | 2026-08-09T18:10:48.641088+00:00 |
| family | celestialdex |
| norad_id | 54,187 |
| object_name | STARLINK-5240 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.191 |
| n_snaps | 207 |
| span_days | 128.139 |
| mean_motion_first | 15.088 |
| mean_motion_last | 15.344 |
| delta_mean_motion | 0.255 |
| altitude_first_km | 539.747 |
| altitude_last_km | 462.813 |
| decay_rate_rev_day2 | 0.003 |
| altitude_decay_km_day | -0.772 |
| 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 | 2026-04-03T14:50:49.956864+00:00 |
| last_utc | 2026-08-09T18:10:48.641088+00:00 |
| last_fix_utc | 2026-08-09T18:10:48.641088+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:50:49.956864+00:00","mean_motion":15.08838664,"altitude_km":539.747,"eccentricity":0.00013228,"inclination_deg":53.2157},{"utc":"2026-04-03T18:01:36.161472+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/54187.json