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Stellar Occultation by (7181) 1991 PH12 on 2023-09-09 (21:42:13 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] : 69c23445-8d30-4b31-9b27-8feb1f753266 [observed]

 Occultation Date + Time   : 2023-09-09 at 21:42:13 UT +/- 0.11 min  [1]
 Object Designation        : (7181) 1991 PH12
 Star Designation          : GDR3 4180091596741561472
 Star Coordinates (ICRF)   : RA = 19 40 50.4142, DE = -16 57 36.573  [2]
 Star Magnitudes           : G = 15.38 mag, RP = 14.84 mag, BP = 15.74 mag
 Object Magnitude          : V = 18.2 mag
 Estimated Magnitude Drop  : 2.9 mag
 Estimated Max. Duration   : 2.7 sec
 Object Mean Diameter      : 9.8 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 3.6 km/s
 Elongation to Moon & Sun  : 170° (sunlit = 22%), Sun = 127°
 Cross-track uncertainty   : 5.0 mas = 9 km = 0.97 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#50

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


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