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Stellar Occultation by (1136) Mercedes on 2023-08-04 (00:17:33 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] : ed8d0f37-2205-44e8-bdae-64fb3f2b6d1a [observed]

 Occultation Date + Time   : 2023-08-04 at 00:17:33 UT +/- 0.03 min  [1]
 Object Designation        : (1136) Mercedes
 Star Designation          : GDR3 4223546735813693312
 Star Coordinates (ICRF)   : RA = 20 06 43.2840, DE = -02 40 32.830  [2]
 Star Magnitudes           : G = 14.55 mag, RP = 13.85 mag, BP = 15.09 mag
 Object Magnitude          : V = 13.73 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 3.6 sec
 Object Mean Diameter      : 25.3 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 7.1 km/s
 Elongation to Moon & Sun  : 45° (sunlit = 93%), Sun = 161°
 Cross-track uncertainty   : 4.3 mas = 3 km = 0.13 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#66

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


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