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Stellar Occultation by (523700) 2014 GM54 on 2023-09-20 (18:44:13 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] : 0eb4ff40-ddb4-11f0-547e-f0a6ff499a19 [observed]

 Occultation Date + Time   : 2023-09-20 at 18:44:13 UT +/- 2.07 min  [1]
 Object Designation        : (523700) 2014 GM54
 Star Designation          : GDR3 1820460375639980416
 Star Coordinates (ICRF)   : RA = 19 57 33.1374, DE = +17 15 19.669  [2]
 Star Magnitudes           : G = 13.76 mag, RP = 12.88 mag, BP = 14.38 mag
 Object Magnitude          : V = 21.84 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 5.6 sec
 Speed of the shadow       : 22.8 km/s
 Object Mean Diameter      : 126.9 km  (src: astorb) => apparent = 6 mas
 Apparent Motion           : 0.0683 arcs/min @ PA = 203 deg
 Horizontal Parallax       : 0.3180 arcs
 Dynamical Class           : TNO
 Elongation to Moon & Sun  : 71° (sunlit = 29%), Sun = 120°
 Cross-track uncertainty   : 42.3 mas = 848 km = 6.69 path-width (1-sig)
 RUWE and duplicate source : 1.26 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL10
 Note                      : FP:true

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


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