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Stellar Occultation by (23876) 1998 RZ79 on 2025-08-19 (21:36:22 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] : 509e9850-ddb7-11f0-547e-cf05bde516f4 [observed]

 Occultation Date + Time   : 2025-08-19 at 21:36:22 UT +/- 0.02 min  [1]
 Object Designation        : (23876) 1998 RZ79
 Star Designation          : GDR3 4076195440201582976
 Star Coordinates (ICRF)   : RA = 18 34 36.5322, DE = -25 34 04.264  [2]
 Star Magnitudes           : G = 14.05 mag, RP = 12.53 mag, BP = 17.32 mag
 Object Magnitude          : V = 18.13 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 2.5 sec
 Speed of the shadow       : 3.1 km/s
 Object Mean Diameter      : 7.7 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.1150 arcs/min @ PA = 255 deg
 Horizontal Parallax       : 4.0150 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 172° (sunlit = 13%), Sun = 131°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.14 path-width (1-sig)
 RUWE and duplicate source : 1.1 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#58
 Note                      : FP:true

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


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