The Dexes / Satellite Decay / 68754
CelestialObjectDex · Satellite Decay
COSMOS 2609
68754 · 2026-04-17T22:59:57Z
Fixes
208
Observations
208
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-17T22:59:57.361920+00:00 |
|---|---|
| end_utc | 2026-08-09T15:07:20.328960+00:00 |
| family | celestialdex |
| norad_id | 68,754 |
| object_name | COSMOS 2609 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 98.125 |
| n_snaps | 208 |
| span_days | 113.672 |
| mean_motion_first | 15.065 |
| mean_motion_last | 15.057 |
| delta_mean_motion | -0.008 |
| altitude_first_km | 546.884 |
| altitude_last_km | 549.394 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.021 |
| 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 | 2026-04-17T22:59:57.361920+00:00 |
| last_utc | 2026-08-09T15:07:20.328960+00:00 |
| last_fix_utc | 2026-08-09T15:07:20.328960+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-17T22:59:57.361920+00:00","mean_motion":15.06506846,"altitude_km":546.884,"eccentricity":0.00087211,"inclination_deg":98.2508},{"utc":"2026-04-18T13:20:45.427776+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/68754.json