The Dexes / Satellite Decay / 58557
CelestialObjectDex · Satellite Decay
YAOGAN-39 05A
58557 · 2026-04-02T09:18:19Z
Fixes
220
Sensor hits
0
Observations
220
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T09:18:19.302624+00:00 |
|---|---|
| end_utc | 2026-08-08T17:40:40.621728+00:00 |
| family | celestialdex |
| norad_id | 58,557 |
| object_name | YAOGAN-39 05A |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 35.001 |
| n_snaps | 220 |
| span_days | 128.349 |
| mean_motion_first | 15.232 |
| mean_motion_last | 15.231 |
| delta_mean_motion | -0.002 |
| altitude_first_km | 496.115 |
| altitude_last_km | 496.596 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.002 |
| 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 | 2026-04-02T09:18:19.302624+00:00 |
| last_utc | 2026-08-08T17:40:40.621728+00:00 |
| last_fix_utc | 2026-08-08T17:40:40.621728+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T09:18:19.302624+00:00","mean_motion":15.23226946,"altitude_km":496.115,"eccentricity":0.00057869,"inclination_deg":35.0001},{"utc":"2026-04-06T12:24:25.286976+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/58557.json