The Dexes / Satellite Decay / 57490
CelestialObjectDex · Satellite Decay
FENGYUN 3F
57490 · 2026-04-03T15:11:29Z
Fixes
316
Observations
316
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:11:29.990400+00:00 |
|---|---|
| end_utc | 2026-08-09T19:25:44.504832+00:00 |
| family | celestialdex |
| norad_id | 57,490 |
| object_name | FENGYUN 3F |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 98.684 |
| n_snaps | 316 |
| span_days | 128.177 |
| mean_motion_first | 14.199 |
| mean_motion_last | 14.199 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 825.604 |
| altitude_last_km | 825.533 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.001 |
| 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 | 2026-04-03T15:11:29.990400+00:00 |
| last_utc | 2026-08-09T19:25:44.504832+00:00 |
| last_fix_utc | 2026-08-09T19:25:44.504832+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:11:29.990400+00:00","mean_motion":14.19925693,"altitude_km":825.604,"eccentricity":0.00008242,"inclination_deg":98.6879},{"utc":"2026-04-04T06:24:44.296704+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/57490.json