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Stellar Occultation by (38443) 1999 SM7 on 2024-08-25 (21:09:46 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] : f1bb4fe0-ddb1-11f0-547e-f963cdbf5a9d [observed]

 Occultation Date + Time   : 2024-08-25 at 21:09:46 UT +/- 0.01 min  [1]
 Object Designation        : (38443) 1999 SM7
 Star Designation          : GDR3 4143436864068160000
 Star Coordinates (ICRF)   : RA = 17 59 17.7926, DE = -18 33 04.737  [2]
 Star Magnitudes           : G = 13.47 mag, RP = 13.03 mag, BP = 13.75 mag
 Object Magnitude          : V = 19.17 mag
 Estimated Magnitude Drop  : 5.7 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 5.2 km/s
 Object Mean Diameter      : 5.8 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.1733 arcs/min @ PA = 156 deg
 Horizontal Parallax       : 3.5340 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 146° (sunlit = 56%), Sun = 117°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#55
 Note                      : FP:true

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


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