The Dexes / Satellite Decay / 40294
CelestialObjectDex · Satellite Decay
NAVSTAR 72 (USA 258)
40294 · 2026-04-02T03:24:58Z
Fixes
102
Sensor hits
0
Observations
102
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T03:24:58.868928+00:00 |
|---|---|
| end_utc | 2026-08-08T06:35:32.051328+00:00 |
| family | celestialdex |
| norad_id | 40,294 |
| object_name | NAVSTAR 72 (USA 258) |
| group | active |
| eccentricity_median | 0.007 |
| inclination_deg_median | 56.989 |
| n_snaps | 102 |
| span_days | 128.132 |
| mean_motion_first | 2.006 |
| mean_motion_last | 2.006 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 20181.505 |
| altitude_last_km | 20183.008 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.011 |
| 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 | 2026-04-02T03:24:58.868928+00:00 |
| last_utc | 2026-08-08T06:35:32.051328+00:00 |
| last_fix_utc | 2026-08-08T06:35:32.051328+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T03:24:58.868928+00:00","mean_motion":2.00571597,"altitude_km":20181.505,"eccentricity":0.00641459,"inclination_deg":56.9389},{"utc":"2026-04-04T15:14:39.543360+00:00","mean_motion" |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/40294.json