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Stellar Occultation by (790) Pretoria on 2023-12-20 (21:49:28 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] : e5192ba0-ddb0-11f0-547e-8640bef7bc8a [observed]

 Occultation Date + Time   : 2023-12-20 at 21:49:28 UT +/- 0.01 min  [1]
 Object Designation        : (790) Pretoria
 Star Designation          : GDR3 3396289442794674304
 Star Coordinates (ICRF)   : RA = 05 43 56.7826, DE = +16 00 44.489  [2]
 Star Magnitudes           : G = 14.59 mag, RP = 13.8 mag, BP = 15.26 mag
 Object Magnitude          : V = 13.53 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 9.6 sec
 Speed of the shadow       : 17.7 km/s
 Object Mean Diameter      : 170.4 km  (src: astorb) => apparent = 81 mas
 Apparent Motion           : 0.5033 arcs/min @ PA = 253 deg
 Horizontal Parallax       : 3.0290 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 73° (sunlit = 63%), Sun = 172°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.16 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL112
 Note                      : FP:true

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


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