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2023-08-21 / UCAC4 397-083749 / (55760) 1992 BL1

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Stefan Meister, Andreas Schweizer O- VID M500 CH GPS 22:24:10 22:25:10
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#49 : 9a7e4f09-ab92-4e81-9e44-41c5c22fc8b4 [db: observed]
JPL#49 : 83e38a8b-166d-4e92-9314-f9e4dfad3d36 [db: observed]

Using prediction 9a7e4f09-ab92-4e81-9e44-41c5c22fc8b4 for map and profile fit

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Event Details
 Occultation UUID [and DB] : 9a7e4f09-ab92-4e81-9e44-41c5c22fc8b4 [observed]

 Occultation Date + Time   : 2023-08-21 at 22:34:52 UT +/- 0.04 min  [1]
 Object Designation        : (55760) 1992 BL1
 Orbit Class               : MBA
 Star Designation          : GDR3 4107103055654358144
 Star Coordinates (ICRF)   : RA = 18 40 25.2863, DE = -10 40 16.890  [2]
 Star Magnitudes           : G = 15.93 mag, RP = 15.07 mag, BP = 16.69 mag
 Object Magnitude          : V = 17.8 mag
 Estimated Magnitude Drop  : 2.1 mag
 Estimated Max. Duration   : 0.6 sec
 Object Mean Diameter      : 7 km  (src: astorb)
 Speed of the shadow       : 11.3 km/s
 Elongation to Moon & Sun  : 71° (sunlit = 26%), Sun = 130°
 Cross-track uncertainty   : 2.3 mas = 3 km = 0.44 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#49

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

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