The Dexes / Satellite Decay / 56171
CelestialObjectDex · Satellite Decay
BB 1
56171 · 2026-04-03T14:34:00Z
Fixes
269
Observations
269
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:34:00.400512+00:00 |
|---|---|
| end_utc | 2026-08-09T20:08:26.066112+00:00 |
| family | celestialdex |
| norad_id | 56,171 |
| object_name | BB 1 |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 81.002 |
| n_snaps | 269 |
| span_days | 128.232 |
| mean_motion_first | 13.824 |
| mean_motion_last | 14.112 |
| delta_mean_motion | 0.288 |
| altitude_first_km | 955.335 |
| altitude_last_km | 855.372 |
| decay_rate_rev_day2 | 0.002 |
| altitude_decay_km_day | -0.661 |
| 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 | 2026-04-03T14:34:00.400512+00:00 |
| last_utc | 2026-08-09T20:08:26.066112+00:00 |
| last_fix_utc | 2026-08-09T20:08:26.066112+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:34:00.400512+00:00","mean_motion":13.82414485,"altitude_km":955.335,"eccentricity":0.00174024,"inclination_deg":81.0029},{"utc":"2026-04-03T16:18:13.713696+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/56171.json