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Stellar Occultation by (88813) 2001 SJ147 on 2025-09-23 (21:05:22 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] : 6f053aa0-ddb8-11f0-547e-6b60fbef679c [observed]

 Occultation Date + Time   : 2025-09-23 at 21:05:22 UT +/- 0.01 min  [1]
 Object Designation        : (88813) 2001 SJ147
 Star Designation          : GDR3 6870821537474365184
 Star Coordinates (ICRF)   : RA = 19 58 48.0973, DE = -17 46 43.758  [2]
 Star Magnitudes           : G = 13.35 mag, RP = 12.86 mag, BP = 13.67 mag
 Object Magnitude          : V = 17.38 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.1 km/s
 Object Mean Diameter      : 4.0 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.9333 arcs/min @ PA = 29 deg
 Horizontal Parallax       : 8.1660 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 94° (sunlit = 4%), Sun = 117°
 Cross-track uncertainty   : 2.7 mas = 2 km = 0.53 path-width (1-sig)
 RUWE and duplicate source : 2.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#48
 Note                      : FP:true

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


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