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Stellar Occultation by (4484) Sif on 2024-12-06 (18:59:29 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] : b8e77140-ddb5-11f0-547e-b58cecceb784 [observed]

 Occultation Date + Time   : 2024-12-06 at 18:59:29 UT +/- 0.0 min  [1]
 Object Designation        : (4484) Sif
 Star Designation          : GDR3 3384282810178821504
 Star Coordinates (ICRF)   : RA = 06 31 05.2564, DE = +26 06 18.556  [2]
 Star Magnitudes           : G = 13.34 mag, RP = 12.87 mag, BP = 13.63 mag
 Object Magnitude          : V = 15.82 mag
 Estimated Magnitude Drop  : 2.6 mag
 Estimated Max. Duration   : 1.4 sec
 Speed of the shadow       : 15.0 km/s
 Object Mean Diameter      : 21.3 km  (src: astorb) => apparent = 21 mas
 Apparent Motion           : 0.8700 arcs/min @ PA = 318 deg
 Horizontal Parallax       : 6.1790 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 135° (sunlit = 30%), Sun = 158°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#59
 Note                      : FP:true

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


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