The Dexes / Satellite Decay / 68753
CelestialObjectDex · Satellite Decay
SL-4 R/B
68753 · 2026-04-17T22:46:19Z
Fixes
221
Observations
221
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-17T22:46:19.238592+00:00 |
|---|---|
| end_utc | 2026-08-09T17:09:18.974016+00:00 |
| family | celestialdex |
| norad_id | 68,753 |
| object_name | SL-4 R/B |
| group | active |
| eccentricity_median | 0.006 |
| inclination_deg_median | 98.272 |
| n_snaps | 221 |
| span_days | 113.766 |
| mean_motion_first | 15.220 |
| mean_motion_last | 15.230 |
| delta_mean_motion | 0.010 |
| altitude_first_km | 499.822 |
| altitude_last_km | 496.720 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.028 |
| 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 | 2026-04-17T22:46:19.238592+00:00 |
| last_utc | 2026-08-09T17:09:18.974016+00:00 |
| last_fix_utc | 2026-08-09T17:09:18.974016+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-17T22:46:19.238592+00:00","mean_motion":15.21995662,"altitude_km":499.822,"eccentricity":0.00651657,"inclination_deg":98.2644},{"utc":"2026-04-18T06:39:40.804704+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/68753.json