The Dexes / Satellite Decay / 54031
CelestialObjectDex · Satellite Decay
COSMOS 2559 [GLONASS-K]
54031 · 2026-04-02T09:03:42Z
Fixes
124
Sensor hits
0
Observations
124
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T09:03:42.068736+00:00 |
|---|---|
| end_utc | 2026-08-09T10:11:04.512192+00:00 |
| family | celestialdex |
| norad_id | 54,031 |
| object_name | COSMOS 2559 [GLONASS-K] |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 64.270 |
| n_snaps | 124 |
| span_days | 129.047 |
| mean_motion_first | 2.131 |
| mean_motion_last | 2.131 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 19129.931 |
| altitude_last_km | 19129.917 |
| 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 | 2026-04-02T09:03:42.068736+00:00 |
| last_utc | 2026-08-09T10:11:04.512192+00:00 |
| last_fix_utc | 2026-08-09T10:11:04.512192+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T09:03:42.068736+00:00","mean_motion":2.13101452,"altitude_km":19129.931,"eccentricity":0.00108595,"inclination_deg":64.3149},{"utc":"2026-04-08T00:12:31.552128+00:00","mean_motion" |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/54031.json