The Dexes / Satellite Decay / 69085
CelestialObjectDex · Satellite Decay
QIANFAN-139
69085 · 2026-05-20T02:53:20Z
Fixes
135
Observations
135
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-05-20T02:53:20.253984+00:00 |
|---|---|
| end_utc | 2026-08-09T19:09:40.743072+00:00 |
| family | celestialdex |
| norad_id | 69,085 |
| object_name | QIANFAN-139 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 88.988 |
| n_snaps | 135 |
| span_days | 81.678 |
| mean_motion_first | 14.220 |
| mean_motion_last | 13.510 |
| delta_mean_motion | -0.710 |
| altitude_first_km | 818.524 |
| altitude_last_km | 1068.507 |
| decay_rate_rev_day2 | -0.011 |
| altitude_decay_km_day | 4.038 |
| 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 | 2026-05-20T02:53:20.253984+00:00 |
| last_utc | 2026-08-09T19:09:40.743072+00:00 |
| last_fix_utc | 2026-08-09T19:09:40.743072+00:00 |
| provisional | false |
| track | [{"utc":"2026-05-20T02:53:20.253984+00:00","mean_motion":14.22021526,"altitude_km":818.524,"eccentricity":0.00067112,"inclination_deg":88.9865},{"utc":"2026-05-20T23:07:47.071200+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/69085.json