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Stellar Occultation by (16) Psyche on 2025-12-08 (19:37:55 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] : d3cace50-ddb8-11f0-547e-623c7ffc0576 [observed]

 Occultation Date + Time   : 2025-12-08 at 19:37:55 UT +/- 0.01 min  [1]
 Object Designation        : (16) Psyche
 Star Designation          : GDR3 3407280264103944960
 Star Coordinates (ICRF)   : RA = 04 59 56.5897, DE = +17 59 01.834  [2]
 Star Magnitudes           : G = 10.62 mag, RP = 10.09 mag, BP = 10.98 mag
 Object Magnitude          : V = 9.68 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 22.4 sec
 Speed of the shadow       : 11.3 km/s
 Object Mean Diameter      : 253.2 km  (src: astorb) => apparent = 207 mas
 Apparent Motion           : 0.5550 arcs/min @ PA = 266 deg
 Horizontal Parallax       : 5.2090 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 55° (sunlit = 80%), Sun = 175°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL92
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

 [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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