The Dexes / Satellite Orbital Decay / 57728
CelestialObjectDex · Satellite Orbital Decay
YAOGAN-39 01B
57728 · 2026-04-03T13:23:15Z
Fixes
281
Observations
281
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Start UTCstart_utc | 2026-04-03T13:23:15.833760+00:00 |
|---|---|
| End UTCend_utc | 2026-08-23T22:22:10.559424+00:00 |
| Familyfamily | celestialdex |
| NORAD IDnorad_id | 57,728 |
| Object nameobject_name | YAOGAN-39 01B |
| Groupgroup | active |
| Eccentricity medianeccentricity_median | 0.001 |
| Inclination deg medianinclination_deg_median | 34.994 |
| Number of snapsn_snaps | 281 |
| Span (days)span_days | 142.374 |
| Mean motion firstmean_motion_first | 15.177 |
| Mean motion lastmean_motion_last | 15.168 |
| Delta mean motiondelta_mean_motion | -0.009 |
| Altitude first (km)altitude_first_km | 512.696 |
| Altitude last (km)altitude_last_km | 515.541 |
| Decay rate rev day2decay_rate_rev_day2 | -0.000 |
| Altitude decay km dayaltitude_decay_km_day | 0.030 |
| 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 | 2026-04-03T13:23:15.833760+00:00 |
| Last UTClast_utc | 2026-08-23T22:22:10.559424+00:00 |
| Last fix UTClast_fix_utc | 2026-08-23T22:22:10.559424+00:00 |
| Provisionalprovisional | false |
| Tracktrack | [{"utc":"2026-04-03T13:23:15.833760+00:00","mean_motion":15.17732368,"altitude_km":512.696,"eccentricity":0.00014681,"inclination_deg":34.9937},{"utc":"2026-04-03T19:42:09.331776+00:00","mean_motion": |
| Total sensor hitstotal_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/57728.json