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Stellar Occultation by (77) Frigga on 2025-04-21 (19:34:33 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] : c5966330-852b-11ef-78cd-0f96db3fa65d [asteroids]

 Occultation Date + Time   : 2025-04-21 at 19:34:33 UT +/- 0.0 min  [1]
 Object Designation        : (77) Frigga
 Star Designation          : GDR3 0868070344301213184
 Star Coordinates (ICRF)   : RA = 07 35 26.7741, DE = +23 25 02.731  [2]
 Star Magnitudes           : G = 10.0 mag, RP = 9.3 mag, BP = 10.54 mag
 Object Magnitude          : V = 13.71 mag
 Estimated Magnitude Drop  : 3.8 mag
 Estimated Max. Duration   : 3.0 sec
 Object Mean Diameter      : 69.2 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 23.1 km/s
 Elongation to Moon & Sun  : 161° (sunlit = 42%), Sun = 80°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.85 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#108

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


More Data and Informations
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