The Dexes / Satellite Decay / 66666
CelestialObjectDex · Satellite Decay
FORMOSAT-8A
66666 · 2026-04-03T11:30:42Z
Fixes
255
Observations
255
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T11:30:42.838272+00:00 |
|---|---|
| end_utc | 2026-08-23T16:17:54.754944+00:00 |
| family | celestialdex |
| norad_id | 66,666 |
| object_name | FORMOSAT-8A |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 97.655 |
| n_snaps | 255 |
| span_days | 142.199 |
| mean_motion_first | 15.008 |
| mean_motion_last | 15.010 |
| delta_mean_motion | 0.001 |
| altitude_first_km | 564.321 |
| altitude_last_km | 563.862 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.008 |
| 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 | 2026-04-03T11:30:42.838272+00:00 |
| last_utc | 2026-08-23T16:17:54.754944+00:00 |
| last_fix_utc | 2026-08-23T16:17:54.754944+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T11:30:42.838272+00:00","mean_motion":15.00834581,"altitude_km":564.321,"eccentricity":0.00037607,"inclination_deg":97.653},{"utc":"2026-04-03T17:54:44.449056+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/66666.json