The Dexes / Satellite Decay / 52984
CelestialObjectDex · Satellite Decay
COSMOS 2557 [GLONASS-K]
52984 · 2026-04-02T02:07:57Z
Fixes
155
Sensor hits
0
Observations
155
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T02:07:57.891936+00:00 |
|---|---|
| end_utc | 2026-08-09T14:30:36.969120+00:00 |
| family | celestialdex |
| norad_id | 52,984 |
| object_name | COSMOS 2557 [GLONASS-K] |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 64.293 |
| n_snaps | 155 |
| span_days | 129.516 |
| mean_motion_first | 2.131 |
| mean_motion_last | 2.131 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 19129.899 |
| altitude_last_km | 19129.864 |
| 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 | 2026-04-02T02:07:57.891936+00:00 |
| last_utc | 2026-08-09T14:30:36.969120+00:00 |
| last_fix_utc | 2026-08-09T14:30:36.969120+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T02:07:57.891936+00:00","mean_motion":2.1310186,"altitude_km":19129.899,"eccentricity":0.00107854,"inclination_deg":64.3418},{"utc":"2026-04-05T08:58:05.712672+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/52984.json