The Dexes / Satellite Decay / 46479
CelestialObjectDex · Satellite Decay
HJ-2B
46479 · 2026-04-03T15:47:53Z
Fixes
306
Observations
306
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:47:53.790144+00:00 |
|---|---|
| end_utc | 2026-08-09T19:20:55.627296+00:00 |
| family | celestialdex |
| norad_id | 46,479 |
| object_name | HJ-2B |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 97.889 |
| n_snaps | 306 |
| span_days | 128.148 |
| mean_motion_first | 14.765 |
| mean_motion_last | 14.765 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 640.313 |
| altitude_last_km | 640.392 |
| 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 | 2026-04-03T15:47:53.790144+00:00 |
| last_utc | 2026-08-09T19:20:55.627296+00:00 |
| last_fix_utc | 2026-08-09T19:20:55.627296+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:47:53.790144+00:00","mean_motion":14.76525614,"altitude_km":640.313,"eccentricity":0.00017338,"inclination_deg":97.8911},{"utc":"2026-04-03T20:40:39.208224+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/46479.json