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2026-10-21 / UCAC4 628-030104 / (400) Ducrosa

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Deborah Smith O- VID M300 ES GPS 04:15:03 :: :: 04:17:03
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):
JPL85 : 6e38c170-d9b4-11f1-43f3-73acefd6cded [db: observed]

Using prediction 6e38c170-d9b4-11f1-43f3-73acefd6cded for map and profile fit

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Event Details
 Occultation UUID [and DB] : 6e38c170-d9b4-11f1-43f3-73acefd6cded [observed]

 Occultation Date + Time   : 2026-10-21 at 04:15:27 UT +/- 0.05 min  [1]
 Object Designation        : (400) Ducrosa
 Orbit Class               : MBA
 Star Designation          : GDR3 3453495825899640448
 Star Coordinates (ICRF)   : RA = 06 02 13.6715, DE = +35 32 59.868  [2]
 Star Magnitudes           : G = 15.6 mag, RP = 14.79 mag, BP = 16.24 mag
 Object Magnitude          : V = 16.41 mag
 Estimated Magnitude Drop  : 1.2 mag
 Estimated Max. Duration   : 8.2 sec
 Object Mean Diameter      : 33.7 km  (src: astorb)
 Speed of the shadow       : 4.1 km/s
 Elongation to Moon & Sun  : 124° (sunlit = 73%), Sun = 117°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL85
 Note                      : FP:true

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

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