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Stellar Occultation by (30478) 2000 OQ37 on 2023-07-08 (00:20:12 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] : cea06cf0-ddb3-11f0-547e-d18bdffd6d3e [observed]

 Occultation Date + Time   : 2023-07-08 at 00:20:12 UT +/- 0.01 min  [1]
 Object Designation        : (30478) 2000 OQ37
 Star Designation          : GDR3 4252147129277127680
 Star Coordinates (ICRF)   : RA = 18 55 19.6278, DE = -07 15 42.285  [2]
 Star Magnitudes           : G = 14.17 mag, RP = 13.22 mag, BP = 15.12 mag
 Object Magnitude          : V = 18.05 mag
 Estimated Magnitude Drop  : 3.9 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 10.7 km/s
 Object Mean Diameter      : 5.5 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.4800 arcs/min @ PA = 270 deg
 Horizontal Parallax       : 4.7890 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 66° (sunlit = 73%), Sun = 164°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.24 path-width (1-sig)
 RUWE and duplicate source : 0.89 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#52
 Note                      : FP:true

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


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