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Stellar Occultation by (109200) 2001 QA78 on 2024-12-20 (21:09:30 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] : 4a167240-c35b-11ef-5276-1d22b26ee9d0 [observed]

 Occultation Date + Time   : 2024-12-20 at 21:09:30 UT +/- 0.0 min  [1]
 Object Designation        : (109200) 2001 QA78
 Star Designation          : GDR3 3322861925987967232
 Star Coordinates (ICRF)   : RA = 05 52 59.5585, DE = +07 11 00.426  [2]
 Star Magnitudes           : G = 11.52 mag, RP = 10.73 mag, BP = 12.19 mag
 Object Magnitude          : V = 17.98 mag
 Estimated Magnitude Drop  : 6.5 mag
 Estimated Max. Duration   : 0.4 sec
 Object Mean Diameter      : 4 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 10.3 km/s
 Elongation to Moon & Sun  : 70° (sunlit = 69%), Sun = 164°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.20 path-width (1-sig)
 RUWE and duplicate source : 1.89 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#43

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


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