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Stellar Occultation by (174006) 2001 YT7 on 2023-09-24 (18:09:02 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] : 12d276c0-ddb4-11f0-547e-8f7aaff450f6 [observed]

 Occultation Date + Time   : 2023-09-24 at 18:09:02 UT +/- 0.02 min  [1]
 Object Designation        : (174006) 2001 YT7
 Star Designation          : GDR3 2684799346813193600
 Star Coordinates (ICRF)   : RA = 21 26 29.4065, DE = -02 59 20.229  [2]
 Star Magnitudes           : G = 7.79 mag, RP = 7.38 mag, BP = 8.02 mag
 Object Magnitude          : V = 20.26 mag
 Estimated Magnitude Drop  : 12.5 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 7.9 km/s
 Object Mean Diameter      : 3.5 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.2583 arcs/min @ PA = 240 deg
 Horizontal Parallax       : 3.4730 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 31° (sunlit = 72%), Sun = 140°
 Cross-track uncertainty   : 2.7 mas = 4 km = 1.42 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 1  (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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