UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
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
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Map with groundtrack and observer stations
Event Details
Occultation UUID [and DB] : 5b0399df-16ca-4cc5-aeb8-935e67aa5434 [observed]
Occultation Date + Time : 2017-07-16 at 00:25:23 UT +/- 0.0 min [1]
Object Designation : (256) Walpurga
Orbit Class : MBA
Star Designation : GDR3 4213877939801497344
Star Coordinates (ICRF) : RA = 19 39 38.3700, DE = -02 21 11.888 [2]
Star Magnitudes : G = 14.4 mag, RP = 13.78 mag, BP = 14.83 mag
Object Magnitude : V = 14.21 mag
Estimated Magnitude Drop : 0.7 mag
Estimated Max. Duration : 5.4 sec
Object Mean Diameter : 63 km (src: astorb)
Speed of the shadow : 11.7 km/s
Elongation to Moon & Sun : 79° (sunlit = 59%), Sun = 161°
Cross-track uncertainty : 0.7 mas = 0 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#65
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
