The Dexes / Satellite Decay / 66988
CelestialObjectDex · Satellite Decay
YAOGAN-47
66988 · 2026-04-03T14:20:27Z
Fixes
223
Observations
223
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:20:27.984768+00:00 |
|---|---|
| end_utc | 2026-08-09T17:42:53.073792+00:00 |
| family | celestialdex |
| norad_id | 66,988 |
| object_name | YAOGAN-47 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 97.502 |
| n_snaps | 223 |
| span_days | 128.141 |
| mean_motion_first | 15.236 |
| mean_motion_last | 15.238 |
| delta_mean_motion | 0.002 |
| altitude_first_km | 495.082 |
| altitude_last_km | 494.502 |
| 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 | 2026-04-03T14:20:27.984768+00:00 |
| last_utc | 2026-08-09T17:42:53.073792+00:00 |
| last_fix_utc | 2026-08-09T17:42:53.073792+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:20:27.984768+00:00","mean_motion":15.23570254,"altitude_km":495.082,"eccentricity":0.00012621,"inclination_deg":97.5068},{"utc":"2026-04-03T20:38:45.977568+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/66988.json