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Stellar Occultation by (19651) 1999 RC112 on 2023-08-04 (22:22:46 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : e518fd30-ddb3-11f0-547e-387c6dfc319d [observed]

 Occultation Date + Time   : 2023-08-04 at 22:22:46 UT +/- 0.22 min  [1]
 Object Designation        : (19651) 1999 RC112
 Star Designation          : GDR3 4367379521196867200
 Star Coordinates (ICRF)   : RA = 17 09 57.7759, DE = -03 18 24.066  [2]
 Star Magnitudes           : G = 14.36 mag, RP = 13.48 mag, BP = 15.13 mag
 Object Magnitude          : V = 17.82 mag
 Estimated Magnitude Drop  : 3.5 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 7.1 km/s
 Object Mean Diameter      : 7.8 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.2917 arcs/min @ PA = 179 deg
 Horizontal Parallax       : 4.3430 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 100° (sunlit = 86%), Sun = 122°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 3.15 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL65
 Note                      : FP:true

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


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