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2026-08-03 / UCAC4 420-142088 / (210531) 1999 FB1

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Blazewicz O- VID M350 PL GPS 20:37:24 :: :: 20:38:04
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):
JPL37 : 5ff54d70-d9ac-11f1-43f3-a8445bd3c992 [db: observed]

Using prediction 5ff54d70-d9ac-11f1-43f3-a8445bd3c992 for map and profile fit

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Event Details
 Occultation UUID [and DB] : 5ff54d70-d9ac-11f1-43f3-a8445bd3c992 [observed]

 Occultation Date + Time   : 2026-08-03 at 20:38:28 UT +/- 0.02 min  [1]
 Object Designation        : (210531) 1999 FB1
 Orbit Class               : MBA
 Star Designation          : GDR3 6913238359608515456
 Star Coordinates (ICRF)   : RA = 20 50 15.5242, DE = -06 09 53.783  [2]
 Star Magnitudes           : G = 12.93 mag, RP = 12.48 mag, BP = 13.23 mag
 Object Magnitude          : V = 18.4 mag
 Estimated Magnitude Drop  : 5.5 mag
 Estimated Max. Duration   : 0.2 sec
 Object Mean Diameter      : 1.60 km  (src: astorb)
 Speed of the shadow       : 6.9 km/s
 Elongation to Moon & Sun  : 60° (sunlit = 74%), Sun = 169°
 Cross-track uncertainty   : 3.0 mas = 2 km = 1.27 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL37
 Note                      : FP:true

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

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