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] : 5a58b69f-1588-4074-bcd3-d8769e9606c1 [observed]
Occultation Date + Time : 2022-08-10 at 02:08:48 UT +/- 0.17 min [1]
Object Designation : (591) Irmgard
Orbit Class : MBA
Star Designation : GDR3 2593883002350640512
Star Coordinates (ICRF) : RA = 01 25 33.0434, DE = +18 13 15.875 [2]
Star Magnitudes : G = 15.64 mag, RP = 15.11 mag, BP = 15.99 mag
Object Magnitude : V = 16.34 mag
Estimated Magnitude Drop : 1.2 mag
Estimated Max. Duration : 7.5 sec
Object Mean Diameter : 52 km (src: astorb)
Speed of the shadow : 6.9 km/s
Elongation to Moon & Sun : 98° (sunlit = 94%), Sun = 111°
Cross-track uncertainty : 2.3 mas = 4 km = 0.09 path-width (1-sig)
RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#63
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
