The Dexes / Satellite Decay / 45721
CelestialObjectDex · Satellite Decay
HAIYANG-1D
45721 · 2026-04-03T14:27:55Z
Fixes
308
Observations
308
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:27:55.907424+00:00 |
|---|---|
| end_utc | 2026-08-09T19:59:04.459200+00:00 |
| family | celestialdex |
| norad_id | 45,721 |
| object_name | HAIYANG-1D |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 98.455 |
| n_snaps | 308 |
| span_days | 128.230 |
| mean_motion_first | 14.342 |
| mean_motion_last | 14.342 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 777.674 |
| altitude_last_km | 777.765 |
| 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 | 2026-04-03T14:27:55.907424+00:00 |
| last_utc | 2026-08-09T19:59:04.459200+00:00 |
| last_fix_utc | 2026-08-09T19:59:04.459200+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:27:55.907424+00:00","mean_motion":14.34215568,"altitude_km":777.674,"eccentricity":0.00032082,"inclination_deg":98.4506},{"utc":"2026-04-03T19:29:18.859776+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/45721.json