The Dexes / Satellite Decay / 40974
CelestialObjectDex · Satellite Decay
BISONSAT
40974 · 2026-04-03T06:16:53Z
Fixes
190
Observations
190
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T06:16:53.186880+00:00 |
|---|---|
| end_utc | 2026-08-09T18:22:28.665120+00:00 |
| family | celestialdex |
| norad_id | 40,974 |
| object_name | BISONSAT |
| group | active |
| eccentricity_median | 0.008 |
| inclination_deg_median | 64.760 |
| n_snaps | 190 |
| span_days | 128.504 |
| mean_motion_first | 15.145 |
| mean_motion_last | 15.175 |
| delta_mean_motion | 0.030 |
| altitude_first_km | 522.563 |
| altitude_last_km | 513.532 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.070 |
| 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 | 2026-04-03T06:16:53.186880+00:00 |
| last_utc | 2026-08-09T18:22:28.665120+00:00 |
| last_fix_utc | 2026-08-09T18:22:28.665120+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T06:16:53.186880+00:00","mean_motion":15.14478258,"altitude_km":522.563,"eccentricity":0.0078738,"inclination_deg":64.7607},{"utc":"2026-04-03T20:32:40.380288+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/40974.json