The Dexes / Satellite Decay / 46478
CelestialObjectDex · Satellite Decay
HJ-2A
46478 · 2026-04-03T14:55:22Z
Fixes
301
Observations
301
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:55:22.361376+00:00 |
|---|---|
| end_utc | 2026-08-09T20:04:30.143136+00:00 |
| family | celestialdex |
| norad_id | 46,478 |
| object_name | HJ-2A |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 97.883 |
| n_snaps | 301 |
| span_days | 128.215 |
| mean_motion_first | 14.765 |
| mean_motion_last | 14.766 |
| delta_mean_motion | 0.001 |
| altitude_first_km | 640.491 |
| altitude_last_km | 640.158 |
| 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 | 2026-04-03T14:55:22.361376+00:00 |
| last_utc | 2026-08-09T20:04:30.143136+00:00 |
| last_fix_utc | 2026-08-09T20:04:30.143136+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:55:22.361376+00:00","mean_motion":14.76469417,"altitude_km":640.491,"eccentricity":0.00041954,"inclination_deg":97.8851},{"utc":"2026-04-03T19:48:08.456832+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/46478.json