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Stellar Occultation by (983) Gunila on 2023-06-21 (22:54:44 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] : b829d880-ddb3-11f0-547e-b0f65e7eccfe [observed]

 Occultation Date + Time   : 2023-06-21 at 22:54:44 UT +/- 0.01 min  [1]
 Object Designation        : (983) Gunila
 Star Designation          : GDR3 4220108562953097984
 Star Coordinates (ICRF)   : RA = 20 04 25.8573, DE = -05 55 48.743  [2]
 Star Magnitudes           : G = 13.14 mag, RP = 12.63 mag, BP = 13.49 mag
 Object Magnitude          : V = 14.2 mag
 Estimated Magnitude Drop  : 1.4 mag
 Estimated Max. Duration   : 7.3 sec
 Speed of the shadow       : 10.1 km/s
 Object Mean Diameter      : 73.9 km  (src: astorb) => apparent = 49 mas
 Apparent Motion           : 0.4017 arcs/min @ PA = 297 deg
 Horizontal Parallax       : 4.2300 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 158° (sunlit = 13%), Sun = 146°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#81
 Note                      : FP:true

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


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