The Dexes / Satellite Decay / 50203
CelestialObjectDex · Satellite Decay
STARLINK-3257
50203 · 2026-04-03T11:07:42Z
Fixes
222
Observations
222
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T11:07:42.129120+00:00 |
|---|---|
| end_utc | 2026-08-23T07:38:50.974656+00:00 |
| family | celestialdex |
| norad_id | 50,203 |
| object_name | STARLINK-3257 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.161 |
| n_snaps | 222 |
| span_days | 141.855 |
| mean_motion_first | 15.089 |
| mean_motion_last | 15.317 |
| delta_mean_motion | 0.228 |
| altitude_first_km | 539.712 |
| altitude_last_km | 470.741 |
| decay_rate_rev_day2 | 0.002 |
| altitude_decay_km_day | -0.593 |
| 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 | 2026-04-03T11:07:42.129120+00:00 |
| last_utc | 2026-08-23T07:38:50.974656+00:00 |
| last_fix_utc | 2026-08-23T07:38:50.974656+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T11:07:42.129120+00:00","mean_motion":15.08850144,"altitude_km":539.712,"eccentricity":0.00013218,"inclination_deg":53.217},{"utc":"2026-04-04T06:12:20.289024+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/50203.json