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Stellar Occultation by (21557) Daniellitt on 2025-11-18 (02:14:13 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] : ba1e1520-ddb8-11f0-547e-226edffdb76c [observed]

 Occultation Date + Time   : 2025-11-18 at 02:14:13 UT +/- 0.02 min  [1]
 Object Designation        : (21557) Daniellitt
 Star Designation          : GDR3 0171340405947117568
 Star Coordinates (ICRF)   : RA = 04 34 03.6383, DE = +31 28 43.926  [2]
 Star Magnitudes           : G = 14.1 mag, RP = 13.08 mag, BP = 14.53 mag
 Object Magnitude          : V = 16.86 mag
 Estimated Magnitude Drop  : 2.8 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 12.7 km/s
 Object Mean Diameter      : 12.0 km  (src: astorb) => apparent = 8 mas
 Apparent Motion           : 0.4900 arcs/min @ PA = 258 deg
 Horizontal Parallax       : 4.0970 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 141° (sunlit = 4%), Sun = 162°
 Cross-track uncertainty   : 7.0 mas = 10 km = 0.91 path-width (1-sig)
 RUWE and duplicate source : 34.32 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL72
 Note                      : FP:true

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


More Data and Informations
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