The Dexes / Satellite Decay / 28129
CelestialObjectDex · Satellite Decay
NAVSTAR 53 (USA 175)
28129 · 2026-04-03T07:32:40Z
Fixes
91
Observations
91
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T07:32:40.387776+00:00 |
|---|---|
| end_utc | 2026-08-06T09:21:31.552992+00:00 |
| family | celestialdex |
| norad_id | 28,129 |
| object_name | NAVSTAR 53 (USA 175) |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 55.035 |
| n_snaps | 91 |
| span_days | 125.076 |
| mean_motion_first | 1.927 |
| mean_motion_last | 1.927 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 20901.977 |
| altitude_last_km | 20902.001 |
| 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 | 2026-04-03T07:32:40.387776+00:00 |
| last_utc | 2026-08-06T09:21:31.552992+00:00 |
| last_fix_utc | 2026-08-06T09:21:31.552992+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T07:32:40.387776+00:00","mean_motion":1.92678599,"altitude_km":20901.977,"eccentricity":0.00030275,"inclination_deg":54.9845},{"utc":"2026-04-10T01:28:06.962016+00:00","mean_motion" |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/28129.json