The Dexes / Satellite Decay / 52999
CelestialObjectDex · Satellite Decay
STARLINK-4217
52999 · 2026-04-03T09:10:24Z
Fixes
212
Observations
212
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T09:10:24.989088+00:00 |
|---|---|
| end_utc | 2026-08-09T03:17:33.908064+00:00 |
| family | celestialdex |
| norad_id | 52,999 |
| object_name | STARLINK-4217 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 53.169 |
| n_snaps | 212 |
| span_days | 127.755 |
| mean_motion_first | 15.088 |
| mean_motion_last | 15.344 |
| delta_mean_motion | 0.256 |
| altitude_first_km | 539.809 |
| altitude_last_km | 462.708 |
| decay_rate_rev_day2 | 0.003 |
| altitude_decay_km_day | -0.801 |
| 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 | 2026-04-03T09:10:24.989088+00:00 |
| last_utc | 2026-08-09T03:17:33.908064+00:00 |
| last_fix_utc | 2026-08-09T03:17:33.908064+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T09:10:24.989088+00:00","mean_motion":15.08818571,"altitude_km":539.809,"eccentricity":0.00016553,"inclination_deg":53.2193},{"utc":"2026-04-03T21:53:30.259392+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/52999.json