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2021-12-15 / 4UC 628-017353 / (19646) 1999 RF102

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show William Stewart O+ VID M279 UK GPS++ 06:16:57 06:17:52.87 06:17:54.15 06:18:56 0.16 0.16 1.28 15.5
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: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#48 : c3dc2166-9e91-427b-910a-8eeed1d864b2 [db: observed]

Using prediction c3dc2166-9e91-427b-910a-8eeed1d864b2 for map and profile fit

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Event Details
 Occultation UUID [and DB] : c3dc2166-9e91-427b-910a-8eeed1d864b2 [observed]

 Occultation Date + Time   : 2021-12-15 at 06:25:42 UT +/- 0.03 min  [1]
 Object Designation        : (19646) 1999 RF102
 Orbit Class               : MBA
 Star Designation          : GDR3 0176524843789946240
 Star Coordinates (ICRF)   : RA = 04 22 40.4563, DE = +35 29 10.092  [2]
 Star Magnitudes           : G = 13.28 mag, RP = 12.4 mag, BP = 14.07 mag
 Object Magnitude          : V = 16.55 mag
 Estimated Magnitude Drop  : 3.3 mag
 Estimated Max. Duration   : 0.9 sec
 Object Mean Diameter      : 11 km  (src: astorb)
 Speed of the shadow       : 12.1 km/s
 Elongation to Moon & Sun  : 32° (sunlit = 87%), Sun = 161°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.18 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#48

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

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