The Dexes / Satellite Decay / 38860
CelestialObjectDex · Satellite Decay
SJ-9A
38860 · 2026-04-03T14:13:34Z
Fixes
329
Observations
329
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:13:34.864896+00:00 |
|---|---|
| end_utc | 2026-08-23T22:13:00.610464+00:00 |
| family | celestialdex |
| norad_id | 38,860 |
| object_name | SJ-9A |
| group | active |
| eccentricity_median | 0.003 |
| inclination_deg_median | 97.671 |
| n_snaps | 329 |
| span_days | 142.333 |
| mean_motion_first | 14.853 |
| mean_motion_last | 14.856 |
| delta_mean_motion | 0.003 |
| altitude_first_km | 612.636 |
| altitude_last_km | 611.697 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.007 |
| 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 | 2026-04-03T14:13:34.864896+00:00 |
| last_utc | 2026-08-23T22:13:00.610464+00:00 |
| last_fix_utc | 2026-08-23T22:13:00.610464+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:13:34.864896+00:00","mean_motion":14.85302764,"altitude_km":612.636,"eccentricity":0.00266158,"inclination_deg":97.6652},{"utc":"2026-04-03T20:41:37.220640+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/38860.json