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Stellar Occultation by (61674) 2000 QX121 on 2025-12-25 (17:26:47 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] : 7f00d9c0-d996-11f1-43f3-57167ff78c85 [observed]

 Occultation Date + Time   : 2025-12-25 at 17:26:47 UT +/- 0.01 min  [1]
 Object Designation        : (61674) 2000 QX121
 Star Designation          : GDR3 3440778633894927872
 Star Coordinates (ICRF)   : RA = 05 37 27.1590, DE = +25 05 41.148  [2]
 Star Magnitudes           : G = 12.83 mag, RP = 12.43 mag, BP = 13.08 mag
 Object Magnitude          : V = 17.68 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 11.3 km/s
 Object Mean Diameter      : 5.0 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.5683 arcs/min @ PA = 256 deg
 Horizontal Parallax       : 5.3550 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 106° (sunlit = 29%), Sun = 171°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.17 path-width (1-sig)
 RUWE and duplicate source : 1.17 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL53
 Note                      : FP:true

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


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