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2017-02-07 / 4UC 511-034425 / (690) Wratislavia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Tim Haymes O+ VID M300 UK GPS++ 19:41:00 19:43:37.40 19:43:45.82 19:46:00 1.7 1.7 8.42 77.5
2 show Stefano Sposetti O- VID M280 CH 19:33:30 19:47:20
3 show Alex Pratt O- VID M279 UK 19:41:13 19:46:07
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#71 : 55a091c0-9706-4283-a5aa-a96d2a262fda [db: observed]

Using prediction 55a091c0-9706-4283-a5aa-a96d2a262fda for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2017-02-07, 19:42 UT (JD = 2457792.321)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 239None8.618 177°, 17° 2.44705573364e610736.60.0° this pole is preferred2010-04-15 not scaled 2007-02-27
# 240None8.618 359°, 45° 2.44705573364e610736.60.0° None2010-04-15 not scaled 2007-02-27
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

   
Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 55a091c0-9706-4283-a5aa-a96d2a262fda [observed]

 Occultation Date + Time   : 2017-02-07 at 19:38:42 UT +/- 0.0 min  [1]
 Object Designation        : (690) Wratislavia
 Orbit Class               : MBA
 Star Designation          : GDR3 3160644309753693568
 Star Coordinates (ICRF)   : RA = 07 02 40.5751, DE = +12 10 25.392  [2]
 Star Magnitudes           : G = 13.45 mag, RP = 12.61 mag, BP = 14.19 mag
 Object Magnitude          : V = 13.26 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 14.7 sec
 Object Mean Diameter      : 135 km  (src: astorb)
 Speed of the shadow       : 9.2 km/s
 Elongation to Moon & Sun  : 10° (sunlit = 87%), Sun = 145°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#71

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

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