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2024-09-15 / UCAC4 404-131190 / (31539) 1999 DQ1

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jose Antonio de los Reyes, Sensi Pastor O- VID M300 ES GPS 23:22:48 23:26:48
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#57 : 60241a70-c355-11ef-5276-85494dffe80d [db: observed]
JPL#55 : 7d81cc10-8b8e-11ef-78cd-8fefe7e93cff [db: asteroids]

Using prediction 60241a70-c355-11ef-5276-85494dffe80d for map and profile fit

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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
 Orbit Class               : MBA
 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)
 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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