The Dexes / Satellite Decay / 47978
CelestialObjectDex · Satellite Decay
STARLINK-1647
47978 · 2026-04-03T15:07:16Z
Fixes
186
Observations
186
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:07:16.744224+00:00 |
|---|---|
| end_utc | 2026-08-09T17:20:18.893760+00:00 |
| family | celestialdex |
| norad_id | 47,978 |
| object_name | STARLINK-1647 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.160 |
| n_snaps | 186 |
| span_days | 128.092 |
| mean_motion_first | 15.302 |
| mean_motion_last | 15.317 |
| delta_mean_motion | 0.015 |
| altitude_first_km | 475.096 |
| altitude_last_km | 470.689 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.009 |
| 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 | 2026-04-03T15:07:16.744224+00:00 |
| last_utc | 2026-08-09T17:20:18.893760+00:00 |
| last_fix_utc | 2026-08-09T17:20:18.893760+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:07:16.744224+00:00","mean_motion":15.302399,"altitude_km":475.096,"eccentricity":0.00010911,"inclination_deg":53.1578},{"utc":"2026-04-04T14:38:05.493120+00:00","mean_motion":15 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/47978.json