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2020-04-16 / TYC 4950-00267-1 / (6723) Chrisclark

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Henk De Groot O+ VID M356 NL GPS++ 22:29:45 22:32:30.02 22:32:31.34 22:34:29 0.01 0.01 1.32 18.5
2 show Jiri Kubanek O- VID M203 CZ 22:29:37 22:33:45
3 show Roland Boninsegna O- CCD M400 BE 22:30:32 22:34:33
4 show Marcin Filipek O- VID M250 PL 22:29:15 22:33:15
5 show O. Schreurs et al O- VID M406 BE 22:31:19 22:33:30
6 show Andreas Dill O- VID L152 BE 22:27:00 22:37:00
7 show Jean Bourgeois O- VID M300 BE 22:31:30 22:33:30
8 show Peter Lindner O- VID M305 DE 22:30:05 22:33:54
9 show John Talbot O- VID M303 UK 22:30:56 22:34:56
10 show Henk Bulder O- VIS M305 NL 22:30:00 22:34:30
11 show Tim Haymes O? CCD M279 UK GPS++ 22:31:00 22:33:03.96 22:33:05.23 22:35:00 0.10 0.38 1.27 17.8
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

11 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#43 : e90be9e5-7e44-4d51-9899-83069e229c91 [db: observed]

Using prediction e90be9e5-7e44-4d51-9899-83069e229c91 for map and profile fit

Get observations as KML file (reduced site location resolution)


Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : e90be9e5-7e44-4d51-9899-83069e229c91 [observed]

 Occultation Date + Time   : 2020-04-16 at 22:32:09 UT +/- 0.02 min  [1]
 Object Designation        : (6723) Chrisclark
 Orbit Class               : MBA
 Star Designation          : GDR3 3682684321720568576
 Star Coordinates (ICRF)   : RA = 12 50 16.4445, DE = -02 11 58.168  [2]
 Star Magnitudes           : G = 9.84 mag, RP = 9.17 mag, BP = 10.36 mag
 Object Magnitude          : V = 17.17 mag
 Estimated Magnitude Drop  : 7.3 mag
 Estimated Max. Duration   : 0.8 sec
 Object Mean Diameter      : 11 km  (src: astorb)
 Speed of the shadow       : 14.0 km/s
 Elongation to Moon & Sun  : 128° (sunlit = 31%), Sun = 165°
 Cross-track uncertainty   : 6.7 mas = 10 km = 1.00 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 1  (0:false, 1:true)

 Ephemeris Reference       : JPL#43

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

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