The Dexes / Satellite Decay / 56129
CelestialObjectDex · Satellite Decay
STARLINK-6121
56129 · 2026-04-03T00:30:49Z
Fixes
176
Observations
176
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T00:30:49.686624+00:00 |
|---|---|
| end_utc | 2026-08-09T15:17:56.035104+00:00 |
| family | celestialdex |
| norad_id | 56,129 |
| object_name | STARLINK-6121 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 43.002 |
| n_snaps | 176 |
| span_days | 128.616 |
| mean_motion_first | 15.268 |
| mean_motion_last | 15.277 |
| delta_mean_motion | 0.009 |
| altitude_first_km | 485.434 |
| altitude_last_km | 482.804 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.002 |
| 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 | 2026-04-03T00:30:49.686624+00:00 |
| last_utc | 2026-08-09T15:17:56.035104+00:00 |
| last_fix_utc | 2026-08-09T15:17:56.035104+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T00:30:49.686624+00:00","mean_motion":15.2678374,"altitude_km":485.434,"eccentricity":0.00021174,"inclination_deg":43.0004},{"utc":"2026-04-04T00:03:57.392640+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/56129.json