The Dexes / Satellite Decay / 38992
CelestialObjectDex · Satellite Decay
EUTELSAT 21B
38992 · 2026-04-03T14:38:26Z
Fixes
269
Observations
269
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:38:26.813184+00:00 |
|---|---|
| end_utc | 2026-08-09T20:29:38.558400+00:00 |
| family | celestialdex |
| norad_id | 38,992 |
| object_name | EUTELSAT 21B |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 0.068 |
| n_snaps | 269 |
| span_days | 128.244 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 35786.331 |
| altitude_last_km | 35785.996 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.008 |
| 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 | 2026-04-03T14:38:26.813184+00:00 |
| last_utc | 2026-08-09T20:29:38.558400+00:00 |
| last_fix_utc | 2026-08-09T20:29:38.558400+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:38:26.813184+00:00","mean_motion":1.00272727,"altitude_km":35786.331,"eccentricity":0.00028402,"inclination_deg":0.0707},{"utc":"2026-04-03T19:46:29.743104+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/38992.json