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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3 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] : ec668492-21b5-4052-b642-86fa30c32ab1 [observed]
Occultation Date + Time : 2022-08-28 at 20:33:19 UT +/- 0.04 min [1]
Object Designation : (256) Walpurga
Orbit Class : MBA
Star Designation : GDR3 4171248121646337152
Star Coordinates (ICRF) : RA = 18 01 21.6850, DE = -07 27 14.741 [2]
Star Magnitudes : G = 15.47 mag, RP = 14.33 mag, BP = 16.86 mag
Object Magnitude : V = 15.05 mag
Estimated Magnitude Drop : 0.6 mag
Estimated Max. Duration : 7.3 sec
Object Mean Diameter : 63 km (src: astorb)
Speed of the shadow : 8.6 km/s
Elongation to Moon & Sun : 96° (sunlit = 2%), Sun = 114°
Cross-track uncertainty : 0.7 mas = 1 km = 0.02 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
