The Dexes / Satellite Decay / 39155
CelestialObjectDex · Satellite Decay
COSMOS 2485 [GLONASS-M]
39155 · 2026-04-03T07:08:48Z
Fixes
129
Observations
129
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T07:08:48.331104+00:00 |
|---|---|
| end_utc | 2026-08-07T01:25:21.580320+00:00 |
| family | celestialdex |
| norad_id | 39,155 |
| object_name | COSMOS 2485 [GLONASS-M] |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 65.426 |
| n_snaps | 129 |
| span_days | 125.761 |
| mean_motion_first | 2.131 |
| mean_motion_last | 2.131 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 19129.806 |
| altitude_last_km | 19129.783 |
| 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 | 2026-04-03T07:08:48.331104+00:00 |
| last_utc | 2026-08-07T01:25:21.580320+00:00 |
| last_fix_utc | 2026-08-07T01:25:21.580320+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T07:08:48.331104+00:00","mean_motion":2.13103023,"altitude_km":19129.806,"eccentricity":0.00250981,"inclination_deg":65.3788},{"utc":"2026-04-07T23:46:08.070816+00:00","mean_motion" |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/39155.json