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Stellar Occultation by (109392) 2001 QV172 on 2023-10-04 (18:52:06 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] : 27d7a0e0-ddb4-11f0-547e-0fb46ff24f6d [observed]

 Occultation Date + Time   : 2023-10-04 at 18:52:06 UT +/- 0.06 min  [1]
 Object Designation        : (109392) 2001 QV172
 Star Designation          : GDR3 6871503200325369984
 Star Coordinates (ICRF)   : RA = 19 47 09.0671, DE = -17 04 41.354  [2]
 Star Magnitudes           : G = 5.68 mag, RP = 4.48 mag, BP = 7.1 mag
 Object Magnitude          : V = 19.73 mag
 Estimated Magnitude Drop  : 14.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 11.7 km/s
 Object Mean Diameter      : 3.7 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4333 arcs/min @ PA = 72 deg
 Horizontal Parallax       : 3.9320 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 144° (sunlit = 68%), Sun = 104°
 Cross-track uncertainty   : 17.0 mas = 27 km = 7.45 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#36
 Note                      : FP:true

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


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