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Stellar Occultation by (798) Ruth on 2023-11-28 (20:04:36 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] : 420b6460-ddb4-11f0-547e-fabebfafd22b [observed]

 Occultation Date + Time   : 2023-11-28 at 20:04:36 UT +/- 0.0 min  [1]
 Object Designation        : (798) Ruth
 Star Designation          : GDR3 2645525998355665664
 Star Coordinates (ICRF)   : RA = 23 28 42.9003, DE = +01 14 10.334  [2]
 Star Magnitudes           : G = 14.94 mag, RP = 14.44 mag, BP = 15.28 mag
 Object Magnitude          : V = 15.15 mag
 Estimated Magnitude Drop  : 0.9 mag
 Estimated Max. Duration   : 5.0 sec
 Speed of the shadow       : 8.6 km/s
 Object Mean Diameter      : 43.2 km  (src: astorb) => apparent = 23 mas
 Apparent Motion           : 0.2733 arcs/min @ PA = 96 deg
 Horizontal Parallax       : 3.3720 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 90° (sunlit = 98%), Sun = 107°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#81
 Note                      : FP:true

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


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