The Dexes / Satellite Decay / 39634
CelestialObjectDex · Satellite Decay
SENTINEL-1A
39634 · 2026-04-03T14:59:30Z
Fixes
309
Observations
309
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:59:30.857280+00:00 |
|---|---|
| end_utc | 2026-08-09T20:27:40.908384+00:00 |
| family | celestialdex |
| norad_id | 39,634 |
| object_name | SENTINEL-1A |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 98.178 |
| n_snaps | 309 |
| span_days | 128.228 |
| mean_motion_first | 14.592 |
| mean_motion_last | 14.594 |
| delta_mean_motion | 0.002 |
| altitude_first_km | 695.766 |
| altitude_last_km | 695.180 |
| 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 | 2026-04-03T14:59:30.857280+00:00 |
| last_utc | 2026-08-09T20:27:40.908384+00:00 |
| last_fix_utc | 2026-08-09T20:27:40.908384+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:59:30.857280+00:00","mean_motion":14.59197522,"altitude_km":695.766,"eccentricity":0.00013931,"inclination_deg":98.1806},{"utc":"2026-04-03T21:34:29.185824+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/39634.json