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Stellar Occultation by (13857) Stafford on 2023-04-03 (22:19:26 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] : 83647a10-ddb3-11f0-547e-d00a29aef593 [observed]

 Occultation Date + Time   : 2023-04-03 at 22:19:26 UT +/- 0.0 min  [1]
 Object Designation        : (13857) Stafford
 Star Designation          : GDR3 3690994774200815744
 Star Coordinates (ICRF)   : RA = 13 05 03.4989, DE = +00 51 36.291  [2]
 Star Magnitudes           : G = 10.11 mag, RP = 9.91 mag, BP = 10.22 mag
 Object Magnitude          : V = 18.32 mag
 Estimated Magnitude Drop  : 8.2 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 13.0 km/s
 Object Mean Diameter      : 4.4 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5817 arcs/min @ PA = 293 deg
 Horizontal Parallax       : 4.7650 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 27° (sunlit = 95%), Sun = 173°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.12 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL56
 Note                      : FP:true

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


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