The Dexes / Satellite Decay / 31306
CelestialObjectDex · Satellite Decay
ASTRA 1L
31306 · 2026-04-03T06:58:23Z
Fixes
263
Observations
263
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T06:58:23.055168+00:00 |
|---|---|
| end_utc | 2026-08-09T17:10:57.928800+00:00 |
| family | celestialdex |
| norad_id | 31,306 |
| object_name | ASTRA 1L |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 1.287 |
| n_snaps | 263 |
| span_days | 128.425 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 35786.794 |
| altitude_last_km | 35786.911 |
| 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 | 2026-04-03T06:58:23.055168+00:00 |
| last_utc | 2026-08-09T17:10:57.928800+00:00 |
| last_fix_utc | 2026-08-09T17:10:57.928800+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T06:58:23.055168+00:00","mean_motion":1.00271074,"altitude_km":35786.794,"eccentricity":0.00043133,"inclination_deg":1.1285},{"utc":"2026-04-03T19:33:23.501376+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/31306.json