The Dexes / Satellite Decay / 48865
CelestialObjectDex · Satellite Decay
COSMOS 2550
48865 · 2026-04-01T11:17:21Z
Fixes
245
Sensor hits
0
Observations
245
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-01T11:17:21.715008+00:00 |
|---|---|
| end_utc | 2026-08-09T21:15:10.255968+00:00 |
| family | celestialdex |
| norad_id | 48,865 |
| object_name | COSMOS 2550 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 67.143 |
| n_snaps | 245 |
| span_days | 130.415 |
| mean_motion_first | 15.338 |
| mean_motion_last | 15.338 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 464.370 |
| altitude_last_km | 464.378 |
| 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 | 2026-04-01T11:17:21.715008+00:00 |
| last_utc | 2026-08-09T21:15:10.255968+00:00 |
| last_fix_utc | 2026-08-09T21:15:10.255968+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-01T11:17:21.715008+00:00","mean_motion":15.33839536,"altitude_km":464.37,"eccentricity":0.00083284,"inclination_deg":67.1445},{"utc":"2026-04-04T09:42:48.621024+00:00","mean_motion":1 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/48865.json