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2025-08-30 / UCAC4 590-018117 / (169) Zelia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show William Stewart O+ VID M279 GB GPS 02:14:50 02:15:47.70 02:15:49.78 02:16:49 0.160 0.160 2.08 50.5
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#76 : 55e4b150-ddb7-11f0-547e-3117bfea0071 [db: observed]
JPL#76 : 69789830-ddb7-11f0-547e-44df7ffe14a6 [db: observed]

Using prediction 55e4b150-ddb7-11f0-547e-3117bfea0071 for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 55e4b150-ddb7-11f0-547e-3117bfea0071 [observed]

 Occultation Date + Time   : 2025-08-30 at 02:17:49 UT +/- 0.0 min  [1]
 Object Designation        : (169) Zelia
 Orbit Class               : MBA
 Star Designation          : GDR3 3421515911731859456
 Star Coordinates (ICRF)   : RA = 05 23 14.0531, DE = +27 56 24.827  [2]
 Star Magnitudes           : G = 13.55 mag, RP = 12.52 mag, BP = 14.65 mag
 Object Magnitude          : V = 14.38 mag
 Estimated Magnitude Drop  : 1.2 mag
 Estimated Max. Duration   : 1.4 sec
 Object Mean Diameter      : 33.6 km  (src: astorb)
 Speed of the shadow       : 24.3 km/s
 Elongation to Moon & Sun  : 152° (sunlit = 39%), Sun = 75°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#76
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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