The Dexes / Satellite Decay / 44457
CelestialObjectDex · Satellite Decay
COSMOS 2539
44457 · 2026-04-01T06:07:17Z
Fixes
168
Sensor hits
0
Observations
168
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-01T06:07:17.786208+00:00 |
|---|---|
| end_utc | 2026-08-09T13:55:58.089216+00:00 |
| family | celestialdex |
| norad_id | 44,457 |
| object_name | COSMOS 2539 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 0.035 |
| n_snaps | 168 |
| span_days | 130.325 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 35785.348 |
| altitude_last_km | 35786.850 |
| 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 | 2026-04-01T06:07:17.786208+00:00 |
| last_utc | 2026-08-09T13:55:58.089216+00:00 |
| last_fix_utc | 2026-08-09T13:55:58.089216+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-01T06:07:17.786208+00:00","mean_motion":1.00276234,"altitude_km":35785.348,"eccentricity":0.00005161,"inclination_deg":0.0211},{"utc":"2026-04-04T22:48:17.593632+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/44457.json