The Dexes / Satellite Decay / 41745
CelestialObjectDex · Satellite Decay
USA 271
41745 · 2026-04-03T08:17:11Z
Fixes
199
Observations
199
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T08:17:11.732352+00:00 |
|---|---|
| end_utc | 2026-08-07T16:08:58.534944+00:00 |
| family | celestialdex |
| norad_id | 41,745 |
| object_name | USA 271 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 4.191 |
| n_snaps | 199 |
| span_days | 126.328 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 35792.433 |
| altitude_last_km | 35787.732 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.315 |
| 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 | 2026-04-03T08:17:11.732352+00:00 |
| last_utc | 2026-08-07T16:08:58.534944+00:00 |
| last_fix_utc | 2026-08-07T16:08:58.534944+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T08:17:11.732352+00:00","mean_motion":1.00250962,"altitude_km":35792.433,"eccentricity":0.0007625,"inclination_deg":3.9783},{"utc":"2026-04-06T09:52:22.759392+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/41745.json