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Stellar Occultation by (1428) Mombasa on 2023-09-17 (00:33:08 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] : 0f187c00-ddb4-11f0-547e-93b9ffd1ff7b [observed]

 Occultation Date + Time   : 2023-09-17 at 00:33:08 UT +/- 0.0 min  [1]
 Object Designation        : (1428) Mombasa
 Star Designation          : GDR3 3330066682088660224
 Star Coordinates (ICRF)   : RA = 06 12 37.1145, DE = +10 39 55.468  [2]
 Star Magnitudes           : G = 14.98 mag, RP = 14.23 mag, BP = 15.6 mag
 Object Magnitude          : V = 15.43 mag
 Estimated Magnitude Drop  : 1.0 mag
 Estimated Max. Duration   : 2.8 sec
 Speed of the shadow       : 20.6 km/s
 Object Mean Diameter      : 56.6 km  (src: astorb) => apparent = 31 mas
 Apparent Motion           : 0.6700 arcs/min @ PA = 94 deg
 Horizontal Parallax       : 3.4610 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 102° (sunlit = 4%), Sun = 81°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#72
 Note                      : FP:true

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


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