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Stellar Occultation by (17855) Geffert on 2026-09-24 (19:13:17 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] : 72f7b070-d9b1-11f1-43f3-22252ffeb4e4 [observed]

 Occultation Date + Time   : 2026-09-24 at 19:13:17 UT +/- 0.01 min  [1]
 Object Designation        : (17855) Geffert
 Star Designation          : GDR3 4119201463130441984
 Star Coordinates (ICRF)   : RA = 17 52 18.1441, DE = -19 57 47.509  [2]
 Star Magnitudes           : G = 13.21 mag, RP = 11.94 mag, BP = 14.89 mag
 Object Magnitude          : V = 19.37 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 16.3 km/s
 Object Mean Diameter      : 8.3 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3933 arcs/min @ PA = 93 deg
 Horizontal Parallax       : 2.5620 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 70° (sunlit = 96%), Sun = 86°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL59
 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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