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Stellar Occultation by (104212) 2000 ER117 on 2023-12-16 (19:54:09 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] : 471d4e00-ddb4-11f0-547e-0821e6e805cf [observed]

 Occultation Date + Time   : 2023-12-16 at 19:54:09 UT +/- 0.01 min  [1]
 Object Designation        : (104212) 2000 ER117
 Star Designation          : GDR3 0228282493944503552
 Star Coordinates (ICRF)   : RA = 04 21 17.8247, DE = +41 17 03.079  [2]
 Star Magnitudes           : G = 11.92 mag, RP = 10.92 mag, BP = 12.93 mag
 Object Magnitude          : V = 18.96 mag
 Estimated Magnitude Drop  : 7.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.7 km/s
 Object Mean Diameter      : 4.3 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5117 arcs/min @ PA = 265 deg
 Horizontal Parallax       : 4.2970 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 115° (sunlit = 18%), Sun = 156°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.59 path-width (1-sig)
 RUWE and duplicate source : 2.46 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#40
 Note                      : FP:true

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


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