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Stellar Occultation by (31539) 1999 DQ1 on 2024-09-15 (23:25:58 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] : 60241a70-c355-11ef-5276-85494dffe80d [observed]

 Occultation Date + Time   : 2024-09-15 at 23:25:58 UT +/- 0.0 min  [1]
 Object Designation        : (31539) 1999 DQ1
 Star Designation          : GDR3 2617600013622774016
 Star Coordinates (ICRF)   : RA = 22 00 34.7375, DE = -09 16 39.582  [2]
 Star Magnitudes           : G = 12.77 mag, RP = 12.09 mag, BP = 13.29 mag
 Object Magnitude          : V = 17.02 mag
 Estimated Magnitude Drop  : 4.3 mag
 Estimated Max. Duration   : 1.0 sec
 Object Mean Diameter      : 11 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 10.9 km/s
 Elongation to Moon & Sun  : 8° (sunlit = 93%), Sun = 155°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.23 path-width (1-sig)
 RUWE and duplicate source : 1.38 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#57

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


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