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2017-10-14 / TYC 0634-00605-1 / (8971) Leucocephala

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jean-Louis Dumont O+ CCD M405 FR GPS 00:38:00 00:39:45.24 00:39:46.28 00:41:00 0.04 0.04 1.04 11.3
2 show Jiri Polak O- VID M303 CZ 00:36:12 00:40:08
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#41 : 3f6c87a6-d0f4-4eaf-a95c-9a4c409757d8 [db: observed]

Using prediction 3f6c87a6-d0f4-4eaf-a95c-9a4c409757d8 for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 3f6c87a6-d0f4-4eaf-a95c-9a4c409757d8 [observed]

 Occultation Date + Time   : 2017-10-14 at 00:41:31 UT +/- 0.04 min  [1]
 Object Designation        : (8971) Leucocephala
 Orbit Class               : MBA
 Star Designation          : GDR3 0073786816590774656
 Star Coordinates (ICRF)   : RA = 02 16 19.8961, DE = +12 29 27.295  [2]
 Star Magnitudes           : G = 10.81 mag, RP = 10.01 mag, BP = 11.51 mag
 Object Magnitude          : V = 17.79 mag
 Estimated Magnitude Drop  : 7.0 mag
 Estimated Max. Duration   : 0.6 sec
 Object Mean Diameter      : 7 km  (src: astorb)
 Speed of the shadow       : 10.9 km/s
 Elongation to Moon & Sun  : 94° (sunlit = 33%), Sun = 165°
 Cross-track uncertainty   : 6.0 mas = 8 km = 1.30 path-width (1-sig)
 RUWE and duplicate source : 1.18 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#41

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

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