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Stellar Occultation by (109759) 2001 RJ72 on 2023-08-04 (04:20:38 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] : e0edca10-ddb3-11f0-547e-f462fbef9b31 [observed]

 Occultation Date + Time   : 2023-08-04 at 04:20:38 UT +/- 0.05 min  [1]
 Object Designation        : (109759) 2001 RJ72
 Star Designation          : GDR3 6897423774628077568
 Star Coordinates (ICRF)   : RA = 21 24 56.2708, DE = -08 42 46.968  [2]
 Star Magnitudes           : G = 10.55 mag, RP = 10.1 mag, BP = 10.83 mag
 Object Magnitude          : V = 18.87 mag
 Estimated Magnitude Drop  : 8.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 10.8 km/s
 Object Mean Diameter      : 3.7 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4767 arcs/min @ PA = 257 deg
 Horizontal Parallax       : 4.6790 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 27° (sunlit = 91%), Sun = 169°
 Cross-track uncertainty   : 19.3 mas = 26 km = 7.11 path-width (1-sig)
 RUWE and duplicate source : 0.88 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#33
 Note                      : FP:true

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


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