The Dexes / Satellite Decay / 41836
CelestialObjectDex · Satellite Decay
HIMAWARI-9
41836 · 2026-04-03T15:12:31Z
Fixes
226
Observations
226
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:12:31.044960+00:00 |
|---|---|
| end_utc | 2026-08-09T07:42:04.823424+00:00 |
| family | celestialdex |
| norad_id | 41,836 |
| object_name | HIMAWARI-9 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 0.029 |
| n_snaps | 226 |
| span_days | 127.687 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 35786.663 |
| altitude_last_km | 35788.156 |
| 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 | 2026-04-03T15:12:31.044960+00:00 |
| last_utc | 2026-08-09T07:42:04.823424+00:00 |
| last_fix_utc | 2026-08-09T07:42:04.823424+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:12:31.044960+00:00","mean_motion":1.00271542,"altitude_km":35786.663,"eccentricity":0.00012024,"inclination_deg":0.0449},{"utc":"2026-04-04T06:00:38.398752+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/41836.json