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Stellar Occultation by (27723) 1990 QA on 2024-08-12 (01:03:12 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] : 390344e0-ddb5-11f0-547e-5619bf9bb35c [observed]

 Occultation Date + Time   : 2024-08-12 at 01:03:12 UT +/- 0.0 min  [1]
 Object Designation        : (27723) 1990 QA
 Star Designation          : GDR3 3455566038793698944
 Star Coordinates (ICRF)   : RA = 05 47 32.0409, DE = +35 27 45.968  [2]
 Star Magnitudes           : G = 14.74 mag, RP = 13.96 mag, BP = 15.28 mag
 Object Magnitude          : V = 18.23 mag
 Estimated Magnitude Drop  : 3.5 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 35.5 km/s
 Object Mean Diameter      : 10.3 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.9150 arcs/min @ PA = 75 deg
 Horizontal Parallax       : 2.7380 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 135° (sunlit = 44%), Sun = 53°
 Cross-track uncertainty   : 1.3 mas = 3 km = 0.29 path-width (1-sig)
 RUWE and duplicate source : 6.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63
 Note                      : FP:true

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


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