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Stellar Occultation by (7411) 1990 QQ1 on 2024-11-07 (03:12:19 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] : 9ed0d2b0-ddb5-11f0-547e-d316ff7f4f22 [observed]

 Occultation Date + Time   : 2024-11-07 at 03:12:19 UT +/- 0.0 min  [1]
 Object Designation        : (7411) 1990 QQ1
 Star Designation          : GDR3 0233591524502958208
 Star Coordinates (ICRF)   : RA = 04 07 37.5244, DE = +45 55 40.216  [2]
 Star Magnitudes           : G = 14.62 mag, RP = 13.69 mag, BP = 15.52 mag
 Object Magnitude          : V = 16.38 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 1.2 sec
 Speed of the shadow       : 7.9 km/s
 Object Mean Diameter      : 9.4 km  (src: astorb) => apparent = 9 mas
 Apparent Motion           : 0.4350 arcs/min @ PA = 295 deg
 Horizontal Parallax       : 5.8350 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 137° (sunlit = 28%), Sun = 146°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL47
 Note                      : FP:true

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


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