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Stellar Occultation by (191) Kolga on 2025-12-09 (17:52:18 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] : d298b6f0-ddb8-11f0-547e-87f0affd0f78 [observed]

 Occultation Date + Time   : 2025-12-09 at 17:52:18 UT +/- 0.0 min  [1]
 Object Designation        : (191) Kolga
 Star Designation          : GDR3 4181639502955155200
 Star Coordinates (ICRF)   : RA = 19 43 52.5218, DE = -16 18 32.404  [2]
 Star Magnitudes           : G = 14.83 mag, RP = 14.19 mag, BP = 15.32 mag
 Object Magnitude          : V = 14.83 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 2.4 sec
 Speed of the shadow       : 41.3 km/s
 Object Mean Diameter      : 101.0 km  (src: astorb) => apparent = 39 mas
 Apparent Motion           : 0.9650 arcs/min @ PA = 86 deg
 Horizontal Parallax       : 2.4820 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 152° (sunlit = 72%), Sun = 37°
 Cross-track uncertainty   : 0.4 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL147
 Note                      : FP:true

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


More Data and Informations
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