The Dexes / Satellite Decay / 25153
CelestialObjectDex · Satellite Decay
INMARSAT 3-F5
25153 · 2026-04-03T08:56:48Z
Fixes
166
Observations
166
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T08:56:48.559200+00:00 |
|---|---|
| end_utc | 2026-08-09T10:11:49.995744+00:00 |
| family | celestialdex |
| norad_id | 25,153 |
| object_name | INMARSAT 3-F5 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 9.676 |
| n_snaps | 166 |
| span_days | 128.052 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 35786.207 |
| altitude_last_km | 35786.695 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.000 |
| 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 | 2026-04-03T08:56:48.559200+00:00 |
| last_utc | 2026-08-09T10:11:49.995744+00:00 |
| last_fix_utc | 2026-08-09T10:11:49.995744+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T08:56:48.559200+00:00","mean_motion":1.0027317,"altitude_km":35786.207,"eccentricity":0.00053371,"inclination_deg":9.528},{"utc":"2026-04-04T05:41:05.283744+00:00","mean_motion":1. |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/25153.json