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Stellar Occultation by (162) Laurentia on 2021-12-29 (01:18:51 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] : 91b6c380-ddad-11f0-547e-b2602ffc1df5 [observed]

 Occultation Date + Time   : 2021-12-29 at 01:18:51 UT +/- 0.01 min  [1]
 Object Designation        : (162) Laurentia
 Star Designation          : GDR3 0156180099105480320
 Star Coordinates (ICRF)   : RA = 05 10 35.8133, DE = +30 12 19.007  [2]
 Star Magnitudes           : G = 13.11 mag, RP = 12.48 mag, BP = 13.56 mag
 Object Magnitude          : V = 13.02 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 9.4 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 99.1 km  (src: astorb) => apparent = 78 mas
 Apparent Motion           : 0.4950 arcs/min @ PA = 268 deg
 Horizontal Parallax       : 4.9890 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 132° (sunlit = 29%), Sun = 160°
 Cross-track uncertainty   : 1.1 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 4.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#86
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

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


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