The Dexes / Satellite Decay / 48554
CelestialObjectDex · Satellite Decay
STARLINK-2139
48554 · 2026-04-03T11:15:51Z
Fixes
196
Observations
196
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T11:15:51.604128+00:00 |
|---|---|
| end_utc | 2026-08-23T12:40:00.004512+00:00 |
| family | celestialdex |
| norad_id | 48,554 |
| object_name | STARLINK-2139 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.160 |
| n_snaps | 196 |
| span_days | 142.058 |
| mean_motion_first | 15.302 |
| mean_motion_last | 15.317 |
| delta_mean_motion | 0.015 |
| altitude_first_km | 475.210 |
| altitude_last_km | 470.735 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.011 |
| 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 | 2026-04-03T11:15:51.604128+00:00 |
| last_utc | 2026-08-23T12:40:00.004512+00:00 |
| last_fix_utc | 2026-08-23T12:40:00.004512+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T11:15:51.604128+00:00","mean_motion":15.30201791,"altitude_km":475.21,"eccentricity":0.00015399,"inclination_deg":53.1602},{"utc":"2026-04-03T17:32:04.352352+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/48554.json