The Dexes / Satellite Decay / 52639
CelestialObjectDex · Satellite Decay
STARLINK-3968
52639 · 2026-04-03T10:31:52Z
Fixes
217
Observations
217
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T10:31:52.120416+00:00 |
|---|---|
| end_utc | 2026-08-09T09:42:58.441248+00:00 |
| family | celestialdex |
| norad_id | 52,639 |
| object_name | STARLINK-3968 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.177 |
| n_snaps | 217 |
| span_days | 127.966 |
| mean_motion_first | 15.088 |
| mean_motion_last | 15.344 |
| delta_mean_motion | 0.256 |
| altitude_first_km | 539.759 |
| altitude_last_km | 462.707 |
| decay_rate_rev_day2 | 0.002 |
| altitude_decay_km_day | -0.520 |
| 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 | 2026-04-03T10:31:52.120416+00:00 |
| last_utc | 2026-08-09T09:42:58.441248+00:00 |
| last_fix_utc | 2026-08-09T09:42:58.441248+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T10:31:52.120416+00:00","mean_motion":15.08834921,"altitude_km":539.759,"eccentricity":0.00015965,"inclination_deg":53.2165},{"utc":"2026-04-04T04:01:06.528288+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/52639.json