The Dexes / Satellite Decay / 44517
CelestialObjectDex · Satellite Decay
COSMOS 2540
44517 · 2026-04-03T14:47:41Z
Fixes
315
Observations
315
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:47:41.442432+00:00 |
|---|---|
| end_utc | 2026-08-09T21:37:35.135040+00:00 |
| family | celestialdex |
| norad_id | 44,517 |
| object_name | COSMOS 2540 |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 99.206 |
| n_snaps | 315 |
| span_days | 128.285 |
| mean_motion_first | 13.859 |
| mean_motion_last | 13.860 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 942.912 |
| altitude_last_km | 942.838 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.001 |
| 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 | 2026-04-03T14:47:41.442432+00:00 |
| last_utc | 2026-08-09T21:37:35.135040+00:00 |
| last_fix_utc | 2026-08-09T21:37:35.135040+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:47:41.442432+00:00","mean_motion":13.85934709,"altitude_km":942.912,"eccentricity":0.00158552,"inclination_deg":99.2097},{"utc":"2026-04-03T21:43:31.041696+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/44517.json