The Dexes / Satellite Decay / 63835
CelestialObjectDex · Satellite Decay
HERMES-3
63835 · 2026-04-01T22:50:00Z
Fixes
185
Sensor hits
0
Observations
185
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-01T22:50:00.077856+00:00 |
|---|---|
| end_utc | 2026-08-09T16:07:08.181408+00:00 |
| family | celestialdex |
| norad_id | 63,835 |
| object_name | HERMES-3 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 97.389 |
| n_snaps | 185 |
| span_days | 129.720 |
| mean_motion_first | 15.310 |
| mean_motion_last | 15.357 |
| delta_mean_motion | 0.047 |
| altitude_first_km | 472.693 |
| altitude_last_km | 458.697 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.109 |
| 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 | 2026-04-01T22:50:00.077856+00:00 |
| last_utc | 2026-08-09T16:07:08.181408+00:00 |
| last_fix_utc | 2026-08-09T16:07:08.181408+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-01T22:50:00.077856+00:00","mean_motion":15.31045232,"altitude_km":472.693,"eccentricity":0.00074262,"inclination_deg":97.3961},{"utc":"2026-04-04T04:09:42.068448+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/63835.json