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Stellar Occultation by (31624) 1999 GP20 on 2022-12-26 (22:12:27 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] : 3e7ded50-ddb3-11f0-547e-7856f7d7dc3c [observed]

 Occultation Date + Time   : 2022-12-26 at 22:12:27 UT +/- 0.02 min  [1]
 Object Designation        : (31624) 1999 GP20
 Star Designation          : GDR3 0099088163989435648
 Star Coordinates (ICRF)   : RA = 02 15 49.6167, DE = +19 39 46.981  [2]
 Star Magnitudes           : G = 10.16 mag, RP = 9.64 mag, BP = 10.51 mag
 Object Magnitude          : V = 17.76 mag
 Estimated Magnitude Drop  : 7.6 mag
 Estimated Max. Duration   : 3.4 sec
 Speed of the shadow       : 2.1 km/s
 Object Mean Diameter      : 6.9 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.0933 arcs/min @ PA = 340 deg
 Horizontal Parallax       : 4.7780 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 75° (sunlit = 17%), Sun = 123°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.35 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL57
 Note                      : FP:true

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


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