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Stellar Occultation by (61785) 2000 QM178 on 2026-07-25 (22:05:57 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] : 2704bbe0-d9ac-11f1-43f3-f0833fbb3f2a [observed]

 Occultation Date + Time   : 2026-07-25 at 22:05:57 UT +/- 0.02 min  [1]
 Object Designation        : (61785) 2000 QM178
 Star Designation          : GDR3 4251823731045701632
 Star Coordinates (ICRF)   : RA = 18 45 17.5748, DE = -08 14 13.524  [2]
 Star Magnitudes           : G = 12.88 mag, RP = 11.79 mag, BP = 14.14 mag
 Object Magnitude          : V = 19.97 mag
 Estimated Magnitude Drop  : 7.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 13.5 km/s
 Object Mean Diameter      : 4.1 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4250 arcs/min @ PA = 254 deg
 Horizontal Parallax       : 3.3430 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 27° (sunlit = 88%), Sun = 154°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.47 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL37
 Note                      : FP:true

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


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