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Stellar Occultation by (121791) 2000 AS115 on 2023-07-20 (21:27:49 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] : d55d9590-ddb3-11f0-547e-4713f2def984 [observed]

 Occultation Date + Time   : 2023-07-20 at 21:27:49 UT +/- 0.01 min  [1]
 Object Designation        : (121791) 2000 AS115
 Star Designation          : GDR3 6838635701094165248
 Star Coordinates (ICRF)   : RA = 21 45 51.2583, DE = -15 00 05.803  [2]
 Star Magnitudes           : G = 12.07 mag, RP = 11.45 mag, BP = 12.52 mag
 Object Magnitude          : V = 19.15 mag
 Estimated Magnitude Drop  : 7.1 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 11.1 km/s
 Object Mean Diameter      : 4.0 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4517 arcs/min @ PA = 224 deg
 Horizontal Parallax       : 4.3310 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 171° (sunlit = 9%), Sun = 154°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.26 path-width (1-sig)
 RUWE and duplicate source : 1.56 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#53
 Note                      : FP:true

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


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