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Stellar Occultation by (30598) 2001 QA117 on 2023-08-20 (01:27:42 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] : f189cdb0-ddb3-11f0-547e-4837afba361e [observed]

 Occultation Date + Time   : 2023-08-20 at 01:27:42 UT +/- 0.0 min  [1]
 Object Designation        : (30598) 2001 QA117
 Star Designation          : GDR3 2644172877498904448
 Star Coordinates (ICRF)   : RA = 23 25 49.5173, DE = -00 08 40.762  [2]
 Star Magnitudes           : G = 12.99 mag, RP = 12.52 mag, BP = 13.29 mag
 Object Magnitude          : V = 17.02 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 9.5 km/s
 Object Mean Diameter      : 6.8 km  (src: astorb) => apparent = 6 mas
 Apparent Motion           : 0.5200 arcs/min @ PA = 276 deg
 Horizontal Parallax       : 5.8220 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 165° (sunlit = 12%), Sun = 155°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.11 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60
 Note                      : FP:true

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


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