The Dexes / Satellite Orbital Decay / 53391
CelestialObjectDex · Satellite Orbital Decay
STARLINK-4521
53391 · 2026-04-03T11:40:04Z
Fixes
215
Observations
215
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Start UTCstart_utc | 2026-04-03T11:40:04.291392+00:00 |
|---|---|
| End UTCend_utc | 2026-08-23T13:54:35.775072+00:00 |
| Familyfamily | celestialdex |
| NORAD IDnorad_id | 53,391 |
| Object nameobject_name | STARLINK-4521 |
| Groupgroup | active |
| Eccentricity medianeccentricity_median | 0.000 |
| Inclination deg medianinclination_deg_median | 53.163 |
| Number of snapsn_snaps | 215 |
| Span (days)span_days | 142.093 |
| Mean motion firstmean_motion_first | 15.089 |
| Mean motion lastmean_motion_last | 15.317 |
| Delta mean motiondelta_mean_motion | 0.228 |
| Altitude first (km)altitude_first_km | 539.703 |
| Altitude last (km)altitude_last_km | 470.740 |
| Decay rate rev day2decay_rate_rev_day2 | 0.002 |
| Altitude decay km dayaltitude_decay_km_day | -0.528 |
| Decay notedecay_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 UTCfirst_utc | 2026-04-03T11:40:04.291392+00:00 |
| Last UTClast_utc | 2026-08-23T13:54:35.775072+00:00 |
| Last fix UTClast_fix_utc | 2026-08-23T13:54:35.775072+00:00 |
| Provisionalprovisional | false |
| Tracktrack | [{"utc":"2026-04-03T11:40:04.291392+00:00","mean_motion":15.08853354,"altitude_km":539.703,"eccentricity":0.00016056,"inclination_deg":53.2205},{"utc":"2026-04-04T03:33:58.405824+00:00","mean_motion": |
| Total sensor hitstotal_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/53391.json