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Stellar Occultation by (20612) 1999 RT237 on 2023-11-27 (21:21:36 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] : 40a91540-ddb4-11f0-547e-0ad8f769c14e [observed]

 Occultation Date + Time   : 2023-11-27 at 21:21:36 UT +/- 0.02 min  [1]
 Object Designation        : (20612) 1999 RT237
 Star Designation          : GDR3 0666640187753883392
 Star Coordinates (ICRF)   : RA = 07 52 36.2184, DE = +15 13 02.847  [2]
 Star Magnitudes           : G = 9.95 mag, RP = 9.51 mag, BP = 10.22 mag
 Object Magnitude          : V = 18.59 mag
 Estimated Magnitude Drop  : 8.6 mag
 Estimated Max. Duration   : 2.2 sec
 Speed of the shadow       : 3.8 km/s
 Object Mean Diameter      : 8.3 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.1200 arcs/min @ PA = 297 deg
 Horizontal Parallax       : 3.3420 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 47° (sunlit = 100%), Sun = 128°
 Cross-track uncertainty   : 0.1 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.28 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL50
 Note                      : FP:true

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


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