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Stellar Occultation by (13013) 1987 SP12 on 2025-10-01 (19:52:46 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] : 7c8ea710-ddb8-11f0-547e-05daf7f73be5 [observed]

 Occultation Date + Time   : 2025-10-01 at 19:52:46 UT +/- 0.01 min  [1]
 Object Designation        : (13013) 1987 SP12
 Star Designation          : GDR3 4083435689908238976
 Star Coordinates (ICRF)   : RA = 19 20 04.6802, DE = -19 33 14.734  [2]
 Star Magnitudes           : G = 12.38 mag, RP = 11.84 mag, BP = 12.75 mag
 Object Magnitude          : V = 18.3 mag
 Estimated Magnitude Drop  : 5.9 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 11.8 km/s
 Object Mean Diameter      : 7.2 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.4317 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 3.8950 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 13° (sunlit = 68%), Sun = 100°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60
 Note                      : FP:true

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


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