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Stellar Occultation by (108579) 2001 MD8 on 2023-09-24 (19:45:16 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] : 113f0580-ddb4-11f0-547e-9c2b5fdd32a9 [observed]

 Occultation Date + Time   : 2023-09-24 at 19:45:16 UT +/- 0.13 min  [1]
 Object Designation        : (108579) 2001 MD8
 Star Designation          : GDR3 2688957493631685888
 Star Coordinates (ICRF)   : RA = 21 08 35.6710, DE = -01 25 40.576  [2]
 Star Magnitudes           : G = 12.52 mag, RP = 11.79 mag, BP = 13.14 mag
 Object Magnitude          : V = 19.15 mag
 Estimated Magnitude Drop  : 6.6 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 6.6 km/s
 Object Mean Diameter      : 4.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2717 arcs/min @ PA = 192 deg
 Horizontal Parallax       : 4.3830 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 29° (sunlit = 72%), Sun = 136°
 Cross-track uncertainty   : 2.3 mas = 3 km = 0.82 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL42
 Note                      : FP:true

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


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