The Dexes / Satellite Decay / 48859
CelestialObjectDex · Satellite Decay
NAVSTAR 81 (USA 319)
48859 · 2026-03-28T01:21:33Z
Fixes
144
Sensor hits
0
Observations
144
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-03-28T01:21:33.319296+00:00 |
|---|---|
| end_utc | 2026-08-09T10:44:06.623232+00:00 |
| family | celestialdex |
| norad_id | 48,859 |
| object_name | NAVSTAR 81 (USA 319) |
| group | active |
| eccentricity_median | 0.003 |
| inclination_deg_median | 55.174 |
| n_snaps | 144 |
| span_days | 134.391 |
| mean_motion_first | 2.006 |
| mean_motion_last | 2.006 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 20181.293 |
| altitude_last_km | 20182.053 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.006 |
| 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 | 2026-03-28T01:21:33.319296+00:00 |
| last_utc | 2026-08-09T10:44:06.623232+00:00 |
| last_fix_utc | 2026-08-09T10:44:06.623232+00:00 |
| provisional | false |
| track | [{"utc":"2026-03-28T01:21:33.319296+00:00","mean_motion":2.00573996,"altitude_km":20181.293,"eccentricity":0.0023817,"inclination_deg":55.2101},{"utc":"2026-04-10T08:45:44.425728+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/48859.json