The Dexes / Satellite Decay / 66723
CelestialObjectDex · Satellite Decay
FLOCK 4H-20
66723 · 2026-04-03T15:17:58Z
Fixes
210
Observations
210
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:17:58.559712+00:00 |
|---|---|
| end_utc | 2026-08-09T15:50:31.987680+00:00 |
| family | celestialdex |
| norad_id | 66,723 |
| object_name | FLOCK 4H-20 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 97.422 |
| n_snaps | 210 |
| span_days | 128.023 |
| mean_motion_first | 15.203 |
| mean_motion_last | 15.217 |
| delta_mean_motion | 0.015 |
| altitude_first_km | 505.071 |
| altitude_last_km | 500.605 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.034 |
| 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 | 2026-04-03T15:17:58.559712+00:00 |
| last_utc | 2026-08-09T15:50:31.987680+00:00 |
| last_fix_utc | 2026-08-09T15:50:31.987680+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:17:58.559712+00:00","mean_motion":15.20254977,"altitude_km":505.071,"eccentricity":0.00028439,"inclination_deg":97.425},{"utc":"2026-04-04T03:56:13.416288+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/66723.json