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Stellar Occultation by (57250) 2001 QQ94 on 2023-06-28 (21:27:49 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] : be0fdb00-ddb3-11f0-547e-f842958fb09c [observed]

 Occultation Date + Time   : 2023-06-28 at 21:27:49 UT +/- 0.01 min  [1]
 Object Designation        : (57250) 2001 QQ94
 Star Designation          : GDR3 4084279638107303808
 Star Coordinates (ICRF)   : RA = 19 17 36.1009, DE = -18 55 06.033  [2]
 Star Magnitudes           : G = 11.93 mag, RP = 11.39 mag, BP = 12.31 mag
 Object Magnitude          : V = 19.32 mag
 Estimated Magnitude Drop  : 7.4 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 10.8 km/s
 Object Mean Diameter      : 2.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5650 arcs/min @ PA = 263 deg
 Horizontal Parallax       : 5.5810 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 72° (sunlit = 75%), Sun = 168°
 Cross-track uncertainty   : 1.7 mas = 1 km = 0.84 path-width (1-sig)
 RUWE and duplicate source : 0.86 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL37
 Note                      : FP:true

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


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