The Dexes / Satellite Decay / 20580
CelestialObjectDex · Satellite Decay
HST
20580 · 2026-04-03T09:48:02Z
Fixes
200
Observations
200
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T09:48:02.703168+00:00 |
|---|---|
| end_utc | 2026-08-09T18:56:23.364384+00:00 |
| family | celestialdex |
| norad_id | 20,580 |
| object_name | HST |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 28.473 |
| n_snaps | 200 |
| span_days | 128.381 |
| mean_motion_first | 15.299 |
| mean_motion_last | 15.313 |
| delta_mean_motion | 0.014 |
| altitude_first_km | 476.128 |
| altitude_last_km | 471.911 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.033 |
| 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 | 2026-04-03T09:48:02.703168+00:00 |
| last_utc | 2026-08-09T18:56:23.364384+00:00 |
| last_fix_utc | 2026-08-09T18:56:23.364384+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T09:48:02.703168+00:00","mean_motion":15.29894294,"altitude_km":476.128,"eccentricity":0.00021175,"inclination_deg":28.4722},{"utc":"2026-04-03T16:03:47.002464+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/20580.json