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Stellar Occultation by (22603) Davidoconnor on 2025-09-18 (19:08:34 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] : 70c72b60-ddb7-11f0-547e-b338fbd9b4f2 [observed]

 Occultation Date + Time   : 2025-09-18 at 19:08:34 UT +/- 0.01 min  [1]
 Object Designation        : (22603) Davidoconnor
 Star Designation          : GDR3 4080547620765956480
 Star Coordinates (ICRF)   : RA = 19 04 19.1129, DE = -23 49 30.374  [2]
 Star Magnitudes           : G = 14.24 mag, RP = 13.61 mag, BP = 14.7 mag
 Object Magnitude          : V = 19.37 mag
 Estimated Magnitude Drop  : 5.1 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 8.4 km/s
 Object Mean Diameter      : 4.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3283 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 4.1460 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 144° (sunlit = 9%), Sun = 109°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.15 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL46
 Note                      : FP:true

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


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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