The Dexes / Satellite Decay / 54377
CelestialObjectDex · Satellite Decay
COSMOS 2564 [GLONASS-M]
54377 · 2026-04-01T06:46:45Z
Fixes
101
Sensor hits
0
Observations
101
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-01T06:46:45.640416+00:00 |
|---|---|
| end_utc | 2026-08-09T06:25:00.907104+00:00 |
| family | celestialdex |
| norad_id | 54,377 |
| object_name | COSMOS 2564 [GLONASS-M] |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 64.742 |
| n_snaps | 101 |
| span_days | 129.985 |
| mean_motion_first | 2.131 |
| mean_motion_last | 2.131 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 19129.892 |
| altitude_last_km | 19129.894 |
| 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 | 2026-04-01T06:46:45.640416+00:00 |
| last_utc | 2026-08-09T06:25:00.907104+00:00 |
| last_fix_utc | 2026-08-09T06:25:00.907104+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-01T06:46:45.640416+00:00","mean_motion":2.1310194,"altitude_km":19129.892,"eccentricity":0.00102475,"inclination_deg":64.74},{"utc":"2026-04-07T09:11:20.940000+00:00","mean_motion":2. |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/54377.json