The Dexes / Satellite Decay / 51780
CelestialObjectDex · Satellite Decay
STARLINK-3617
51780 · 2026-04-03T14:46:14Z
Fixes
226
Observations
226
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:46:14.493792+00:00 |
|---|---|
| end_utc | 2026-08-09T17:06:55.399680+00:00 |
| family | celestialdex |
| norad_id | 51,780 |
| object_name | STARLINK-3617 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.184 |
| n_snaps | 226 |
| span_days | 128.098 |
| mean_motion_first | 15.088 |
| mean_motion_last | 15.344 |
| delta_mean_motion | 0.256 |
| altitude_first_km | 539.784 |
| altitude_last_km | 462.756 |
| decay_rate_rev_day2 | 0.002 |
| altitude_decay_km_day | -0.611 |
| 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 | 2026-04-03T14:46:14.493792+00:00 |
| last_utc | 2026-08-09T17:06:55.399680+00:00 |
| last_fix_utc | 2026-08-09T17:06:55.399680+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:46:14.493792+00:00","mean_motion":15.08826762,"altitude_km":539.784,"eccentricity":0.00014833,"inclination_deg":53.2182},{"utc":"2026-04-04T17:47:49.418880+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/51780.json