The Dexes / Satellite Decay / 57628
CelestialObjectDex · Satellite Decay
HEAD-3C
57628 · 2026-04-03T15:23:28Z
Fixes
292
Observations
292
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:23:28.676832+00:00 |
|---|---|
| end_utc | 2026-08-09T21:05:32.949312+00:00 |
| family | celestialdex |
| norad_id | 57,628 |
| object_name | HEAD-3C |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 44.999 |
| n_snaps | 292 |
| span_days | 128.238 |
| mean_motion_first | 14.621 |
| mean_motion_last | 14.623 |
| delta_mean_motion | 0.002 |
| altitude_first_km | 686.271 |
| altitude_last_km | 685.651 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.005 |
| 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 | 2026-04-03T15:23:28.676832+00:00 |
| last_utc | 2026-08-09T21:05:32.949312+00:00 |
| last_fix_utc | 2026-08-09T21:05:32.949312+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:23:28.676832+00:00","mean_motion":14.6214036,"altitude_km":686.271,"eccentricity":0.00061866,"inclination_deg":44.9991},{"utc":"2026-04-03T20:18:38.529792+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/57628.json