The Dexes / Satellite Decay / 57727
CelestialObjectDex · Satellite Decay
YAOGAN-39 01A
57727 · 2026-04-03T16:07:43Z
Fixes
212
Observations
212
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T16:07:43.562208+00:00 |
|---|---|
| end_utc | 2026-08-07T23:43:58.131264+00:00 |
| family | celestialdex |
| norad_id | 57,727 |
| object_name | YAOGAN-39 01A |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 35.003 |
| n_snaps | 212 |
| span_days | 126.317 |
| mean_motion_first | 15.232 |
| mean_motion_last | 15.230 |
| delta_mean_motion | -0.003 |
| altitude_first_km | 496.067 |
| altitude_last_km | 496.937 |
| 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 | 2026-04-03T16:07:43.562208+00:00 |
| last_utc | 2026-08-07T23:43:58.131264+00:00 |
| last_fix_utc | 2026-08-07T23:43:58.131264+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T16:07:43.562208+00:00","mean_motion":15.23242697,"altitude_km":496.067,"eccentricity":0.00027969,"inclination_deg":35.003},{"utc":"2026-04-04T11:00:16.104672+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/57727.json