The Dexes / Satellite Decay / 64871
CelestialObjectDex · Satellite Decay
ATHENA EPIC
64871 · 2026-04-03T10:57:27Z
Fixes
239
Observations
239
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T10:57:27.689472+00:00 |
|---|---|
| end_utc | 2026-08-23T04:03:30.364416+00:00 |
| family | celestialdex |
| norad_id | 64,871 |
| object_name | ATHENA EPIC |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 97.667 |
| n_snaps | 239 |
| span_days | 141.713 |
| mean_motion_first | 14.939 |
| mean_motion_last | 14.943 |
| delta_mean_motion | 0.004 |
| altitude_first_km | 585.918 |
| altitude_last_km | 584.535 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.010 |
| 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 | 2026-04-03T10:57:27.689472+00:00 |
| last_utc | 2026-08-23T04:03:30.364416+00:00 |
| last_fix_utc | 2026-08-23T04:03:30.364416+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T10:57:27.689472+00:00","mean_motion":14.93858549,"altitude_km":585.918,"eccentricity":0.00080358,"inclination_deg":97.6731},{"utc":"2026-04-04T04:38:27.583584+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/64871.json