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Stellar Occultation by (409) Aspasia on 2022-12-16 (19:36:53 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] : 39fb2450-ddb3-11f0-547e-302bbedee622 [observed]

 Occultation Date + Time   : 2022-12-16 at 19:36:53 UT +/- 0.0 min  [1]
 Object Designation        : (409) Aspasia
 Star Designation          : GDR3 6899484980973473792
 Star Coordinates (ICRF)   : RA = 21 22 01.9325, DE = -05 14 51.243  [2]
 Star Magnitudes           : G = 11.72 mag, RP = 10.95 mag, BP = 12.35 mag
 Object Magnitude          : V = 12.92 mag
 Estimated Magnitude Drop  : 1.5 mag
 Estimated Max. Duration   : 4.7 sec
 Speed of the shadow       : 34.7 km/s
 Object Mean Diameter      : 161.6 km  (src: astorb) => apparent = 74 mas
 Apparent Motion           : 0.9550 arcs/min @ PA = 78 deg
 Horizontal Parallax       : 2.9270 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 139° (sunlit = 46%), Sun = 57°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#136
 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


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