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2023-09-09 / UCAC4 378-144908 / (51938) 2001 QL159

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Serge Dramonis O- VID M400 GR GPS 18:52:44 18:54:00
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#46 : c15b885b-f605-4878-a6c9-979373faa490 [db: observed]

Using prediction c15b885b-f605-4878-a6c9-979373faa490 for map and profile fit

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Event Details
 Occultation UUID [and DB] : c15b885b-f605-4878-a6c9-979373faa490 [observed]

 Occultation Date + Time   : 2023-09-09 at 19:03:24 UT +/- 0.15 min  [1]
 Object Designation        : (51938) 2001 QL159
 Orbit Class               : MBA
 Star Designation          : GDR3 4101432496236313856
 Star Coordinates (ICRF)   : RA = 18 59 39.8031, DE = -14 24 24.986  [2]
 Star Magnitudes           : G = 12.96 mag, RP = 12.41 mag, BP = 13.33 mag
 Object Magnitude          : V = 19.36 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 0.9 sec
 Object Mean Diameter      : 6 km  (src: astorb)
 Speed of the shadow       : 6.8 km/s
 Elongation to Moon & Sun  : 166° (sunlit = 23%), Sun = 117°
 Cross-track uncertainty   : 2.0 mas = 3 km = 0.66 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#46

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

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