The Dexes / Satellite Decay / 54685
CelestialObjectDex · Satellite Decay
DONGPO 09
54685 · 2026-04-03T14:21:17Z
Fixes
315
Observations
315
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:21:17.680320+00:00 |
|---|---|
| end_utc | 2026-08-09T20:43:16.241952+00:00 |
| family | celestialdex |
| norad_id | 54,685 |
| object_name | DONGPO 09 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 97.689 |
| n_snaps | 315 |
| span_days | 128.265 |
| mean_motion_first | 15.347 |
| mean_motion_last | 15.374 |
| delta_mean_motion | 0.027 |
| altitude_first_km | 461.828 |
| altitude_last_km | 453.691 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.064 |
| 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 | 2026-04-03T14:21:17.680320+00:00 |
| last_utc | 2026-08-09T20:43:16.241952+00:00 |
| last_fix_utc | 2026-08-09T20:43:16.241952+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:21:17.680320+00:00","mean_motion":15.34694543,"altitude_km":461.828,"eccentricity":0.00030355,"inclination_deg":97.6836},{"utc":"2026-04-03T20:36:51.230592+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/54685.json