The Dexes / Satellite Decay / 50573
CelestialObjectDex · Satellite Decay
TIANHUI 4B
50573 · 2026-04-03T14:16:33Z
Fixes
317
Observations
317
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:16:33.640320+00:00 |
|---|---|
| end_utc | 2026-08-09T20:35:54.267936+00:00 |
| family | celestialdex |
| norad_id | 50,573 |
| object_name | TIANHUI 4B |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 88.972 |
| n_snaps | 317 |
| span_days | 128.263 |
| mean_motion_first | 15.456 |
| mean_motion_last | 15.472 |
| delta_mean_motion | 0.016 |
| altitude_first_km | 429.752 |
| altitude_last_km | 424.996 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.038 |
| 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 | 2026-04-03T14:16:33.640320+00:00 |
| last_utc | 2026-08-09T20:35:54.267936+00:00 |
| last_fix_utc | 2026-08-09T20:35:54.267936+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:16:33.640320+00:00","mean_motion":15.45553739,"altitude_km":429.752,"eccentricity":0.00092494,"inclination_deg":88.9766},{"utc":"2026-04-03T20:29:30.453216+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/50573.json