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2023-09-15 / UCAC4 372-178878 / (46339) 2001 RU81

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Antuszewicz O- VID M200 PL NTP 18:44:51 18:46:50
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#41 : c5a4d3e1-04c6-4147-ad0a-9894b74f3049 [db: observed]

Using prediction c5a4d3e1-04c6-4147-ad0a-9894b74f3049 for map and profile fit

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Event Details
 Occultation UUID [and DB] : c5a4d3e1-04c6-4147-ad0a-9894b74f3049 [observed]

 Occultation Date + Time   : 2023-09-15 at 18:42:34 UT +/- 0.05 min  [1]
 Object Designation        : (46339) 2001 RU81
 Orbit Class               : MBA
 Star Designation          : GDR3 6839138697599790336
 Star Coordinates (ICRF)   : RA = 21 56 18.0555, DE = -15 39 14.192  [2]
 Star Magnitudes           : G = 11.64 mag, RP = 10.97 mag, BP = 12.17 mag
 Object Magnitude          : V = 18.07 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 0.6 sec
 Object Mean Diameter      : 4 km  (src: astorb)
 Speed of the shadow       : 7.3 km/s
 Elongation to Moon & Sun  : 145° (sunlit = 0%), Sun = 153°
 Cross-track uncertainty   : 8.7 mas = 9 km = 2.23 path-width (1-sig)
 RUWE and duplicate source : 1.16 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#41

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

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