The Dexes / Satellite Decay / 66545
CelestialObjectDex · Satellite Decay
SHIJIAN-30A (SJ-30A)
66545 · 2026-04-03T15:44:39Z
Fixes
248
Observations
248
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:44:39.013440+00:00 |
|---|---|
| end_utc | 2026-08-09T15:39:17.753184+00:00 |
| family | celestialdex |
| norad_id | 66,545 |
| object_name | SHIJIAN-30A (SJ-30A) |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 51.798 |
| n_snaps | 248 |
| span_days | 127.996 |
| mean_motion_first | 15.156 |
| mean_motion_last | 15.157 |
| delta_mean_motion | 0.001 |
| altitude_first_km | 519.177 |
| altitude_last_km | 518.830 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.002 |
| 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 | 2026-04-03T15:44:39.013440+00:00 |
| last_utc | 2026-08-09T15:39:17.753184+00:00 |
| last_fix_utc | 2026-08-09T15:39:17.753184+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:44:39.013440+00:00","mean_motion":15.15593555,"altitude_km":519.177,"eccentricity":0.0011865,"inclination_deg":51.7966},{"utc":"2026-04-04T05:59:12.974208+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/66545.json