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The Dexes / Satellite Orbital Decay / 44350

CelestialObjectDex · Satellite Orbital Decay

FORMOSAT 7-4

44350 · 2026-04-03T12:22:32Z

Fixes
214
Observations
214
Altitude — track
214 measured points · 2026-04-032026-08-23
Mean motion — track
214 measured points · 2026-04-032026-08-23

The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

Start UTCstart_utc2026-04-03T12:22:32.199744+00:00
End UTCend_utc2026-08-23T12:59:49.394688+00:00
Familyfamilycelestialdex
NORAD IDnorad_id44,350
Object nameobject_nameFORMOSAT 7-4
Groupgroupactive
Eccentricity medianeccentricity_median0.000
Inclination deg medianinclination_deg_median23.998
Number of snapsn_snaps214
Span (days)span_days142.026
Mean motion firstmean_motion_first14.962
Mean motion lastmean_motion_last14.967
Delta mean motiondelta_mean_motion0.006
Altitude first (km)altitude_first_km578.723
Altitude last (km)altitude_last_km576.968
Decay rate rev day2decay_rate_rev_day20.000
Altitude decay km dayaltitude_decay_km_day-0.012
Decay notedecay_notemean_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_utc2026-04-03T12:22:32.199744+00:00
Last UTClast_utc2026-08-23T12:59:49.394688+00:00
Last fix UTClast_fix_utc2026-08-23T12:59:49.394688+00:00
Provisionalprovisionalfalse
Tracktrack[{"utc":"2026-04-03T12:22:32.199744+00:00","mean_motion":14.96176763,"altitude_km":578.723,"eccentricity":0.00014069,"inclination_deg":23.9982},{"utc":"2026-04-04T17:11:11.562720+00:00","mean_motion":
Total sensor hitstotal_sensor_hits0

Provenance

  • celestrak

Storage: dossier · celestial_storehouse/satellite_decay/44350.json

FORMOSAT 7-4 — Satellite Orbital Decay — TerraPulse