The Dexes / Satellite Decay / 39491
CelestialObjectDex · Satellite Decay
COSMOS 2494 (SKRL-756 2)
39491 · 2026-04-03T14:23:54Z
Fixes
291
Observations
291
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:23:54.456576+00:00 |
|---|---|
| end_utc | 2026-08-09T20:54:23.149728+00:00 |
| family | celestialdex |
| norad_id | 39,491 |
| object_name | COSMOS 2494 (SKRL-756 2) |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 82.411 |
| n_snaps | 291 |
| span_days | 128.271 |
| mean_motion_first | 15.044 |
| mean_motion_last | 15.051 |
| delta_mean_motion | 0.007 |
| altitude_first_km | 553.284 |
| altitude_last_km | 551.081 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.018 |
| 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 | 2026-04-03T14:23:54.456576+00:00 |
| last_utc | 2026-08-09T20:54:23.149728+00:00 |
| last_fix_utc | 2026-08-09T20:54:23.149728+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:23:54.456576+00:00","mean_motion":15.04420966,"altitude_km":553.284,"eccentricity":0.00176321,"inclination_deg":82.413},{"utc":"2026-04-03T19:11:14.463744+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/39491.json