The Dexes / Satellite Decay / 66546
CelestialObjectDex · Satellite Decay
SHIJIAN-30B (SJ-30B)
66546 · 2026-04-03T15:46:47Z
Fixes
243
Observations
243
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:46:47.641440+00:00 |
|---|---|
| end_utc | 2026-08-09T15:39:46.886400+00:00 |
| family | celestialdex |
| norad_id | 66,546 |
| object_name | SHIJIAN-30B (SJ-30B) |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 51.796 |
| n_snaps | 243 |
| span_days | 127.995 |
| mean_motion_first | 15.156 |
| mean_motion_last | 15.157 |
| delta_mean_motion | 0.001 |
| altitude_first_km | 519.022 |
| altitude_last_km | 518.729 |
| 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 | 2026-04-03T15:46:47.641440+00:00 |
| last_utc | 2026-08-09T15:39:46.886400+00:00 |
| last_fix_utc | 2026-08-09T15:39:46.886400+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:46:47.641440+00:00","mean_motion":15.1564469,"altitude_km":519.022,"eccentricity":0.0010925,"inclination_deg":51.7948},{"utc":"2026-04-04T06:01:19.793856+00:00","mean_motion":15 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/66546.json