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Stellar Occultation by (48469) 1991 TQ1 on 2023-09-25 (23:08:42 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] : 15f16a00-ddb4-11f0-547e-14b7fbffa378 [observed]

 Occultation Date + Time   : 2023-09-25 at 23:08:42 UT +/- 0.0 min  [1]
 Object Designation        : (48469) 1991 TQ1
 Star Designation          : GDR3 2482647403833625728
 Star Coordinates (ICRF)   : RA = 01 15 12.9072, DE = -05 31 55.923  [2]
 Star Magnitudes           : G = 11.3 mag, RP = 10.7 mag, BP = 11.67 mag
 Object Magnitude          : V = 15.34 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 11.3 km/s
 Object Mean Diameter      : 6.3 km  (src: astorb) => apparent = 10 mas
 Apparent Motion           : 1.0833 arcs/min @ PA = 298 deg
 Horizontal Parallax       : 10.1590 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 60° (sunlit = 83%), Sun = 162°
 Cross-track uncertainty   : 2.5 mas = 1 km = 0.25 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60
 Note                      : FP:true

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


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