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] : 4116b5a0-6d3a-45d4-a275-0b4d90ddc3f3 [observed]
Occultation Date + Time : 2022-04-22 at 02:10:54 UT +/- 0.03 min [1]
Object Designation : (256) Walpurga
Orbit Class : MBA
Star Designation : GDR3 4252339028455435776
Star Coordinates (ICRF) : RA = 18 45 33.4866, DE = -07 04 01.502 [2]
Star Magnitudes : G = 14.15 mag, RP = 13.53 mag, BP = 14.59 mag
Object Magnitude : V = 15.05 mag
Estimated Magnitude Drop : 1.3 mag
Estimated Max. Duration : 6.4 sec
Object Mean Diameter : 63 km (src: astorb)
Speed of the shadow : 10.0 km/s
Elongation to Moon & Sun : 20° (sunlit = 66%), Sun = 109°
Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 0.98 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
