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Stellar Occultation by (202791) 2008 QC4 on 2023-09-29 (02:36:36 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] : 149ef960-ddb4-11f0-547e-41b57f957cdf [observed]

 Occultation Date + Time   : 2023-09-29 at 02:36:36 UT +/- 0.06 min  [1]
 Object Designation        : (202791) 2008 QC4
 Star Designation          : GDR3 3360101143573318784
 Star Coordinates (ICRF)   : RA = 07 05 02.8290, DE = +16 08 24.667  [2]
 Star Magnitudes           : G = 11.85 mag, RP = 11.45 mag, BP = 12.09 mag
 Object Magnitude          : V = 20.62 mag
 Estimated Magnitude Drop  : 8.8 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 19.0 km/s
 Object Mean Diameter      : 8.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3233 arcs/min @ PA = 109 deg
 Horizontal Parallax       : 1.8110 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 104° (sunlit = 100%), Sun = 80°
 Cross-track uncertainty   : 17.0 mas = 59 km = 7.21 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#29
 Note                      : FP:true

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


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