The Dexes / Satellite Decay / 69808
CelestialObjectDex · Satellite Decay
QIANFAN-209
69808 · 2026-07-15T12:39:20Z
Fixes
49
Sensor hits
0
Observations
49
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-07-15T12:39:20.587968+00:00 |
|---|---|
| end_utc | 2026-08-09T20:42:07.176384+00:00 |
| family | celestialdex |
| norad_id | 69,808 |
| object_name | QIANFAN-209 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 88.993 |
| n_snaps | 49 |
| span_days | 25.335 |
| mean_motion_first | 14.231 |
| mean_motion_last | 14.109 |
| delta_mean_motion | -0.122 |
| altitude_first_km | 814.924 |
| altitude_last_km | 856.376 |
| decay_rate_rev_day2 | -0.005 |
| altitude_decay_km_day | 1.864 |
| 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 | 2026-07-15T12:39:20.587968+00:00 |
| last_utc | 2026-08-09T20:42:07.176384+00:00 |
| last_fix_utc | 2026-08-09T20:42:07.176384+00:00 |
| provisional | false |
| track | [{"utc":"2026-07-15T12:39:20.587968+00:00","mean_motion":14.23089229,"altitude_km":814.924,"eccentricity":0.00074698,"inclination_deg":88.9915},{"utc":"2026-07-15T21:05:36.557376+00:00","mean_motion": |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/69808.json