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Stellar Occultation by (28156) McColl on 2023-06-14 (23:04:33 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] : b0d81100-ddb3-11f0-547e-4162f57faddd [observed]

 Occultation Date + Time   : 2023-06-14 at 23:04:33 UT +/- 0.0 min  [1]
 Object Designation        : (28156) McColl
 Star Designation          : GDR3 4207562856100557824
 Star Coordinates (ICRF)   : RA = 19 22 42.3434, DE = -07 58 19.863  [2]
 Star Magnitudes           : G = 13.69 mag, RP = 13.1 mag, BP = 14.11 mag
 Object Magnitude          : V = 18.62 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 8.9 km/s
 Object Mean Diameter      : 5.3 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.3633 arcs/min @ PA = 281 deg
 Horizontal Parallax       : 4.3330 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 113° (sunlit = 11%), Sun = 149°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.08 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#57
 Note                      : FP:true

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


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