The Dexes / Satellite Decay / 57213
CelestialObjectDex · Satellite Decay
H2SAT (HEINRICH HERTZ)
57213 · 2026-04-02T00:44:38Z
Fixes
220
Sensor hits
0
Observations
220
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T00:44:38.704992+00:00 |
|---|---|
| end_utc | 2026-08-09T19:00:44.879040+00:00 |
| family | celestialdex |
| norad_id | 57,213 |
| object_name | H2SAT (HEINRICH HERTZ) |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 0.017 |
| n_snaps | 220 |
| span_days | 129.761 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 35787.598 |
| altitude_last_km | 35786.395 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.002 |
| 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 | 2026-04-02T00:44:38.704992+00:00 |
| last_utc | 2026-08-09T19:00:44.879040+00:00 |
| last_fix_utc | 2026-08-09T19:00:44.879040+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T00:44:38.704992+00:00","mean_motion":1.00268207,"altitude_km":35787.598,"eccentricity":0.00015951,"inclination_deg":0.0154},{"utc":"2026-04-03T19:40:37.805664+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/57213.json