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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6 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] : cc1058be-82d7-471f-ba42-fa14c0f3cd11 [observed]
Occultation Date + Time : 2019-01-29 at 21:20:33 UT +/- 0.01 min [1]
Object Designation : (1585) Union
Orbit Class : MBA
Star Designation : GDR3 0578348373250168704
Star Coordinates (ICRF) : RA = 09 03 18.1601, DE = +03 34 33.302 [2]
Star Magnitudes : G = 13.32 mag, RP = 12.46 mag, BP = 14.1 mag
Object Magnitude : V = 13.73 mag
Estimated Magnitude Drop : 1.0 mag
Estimated Max. Duration : 3.4 sec
Object Mean Diameter : 50 km (src: astorb)
Speed of the shadow : 15.0 km/s
Elongation to Moon & Sun : 107° (sunlit = 30%), Sun = 165°
Cross-track uncertainty : 1.3 mas = 1 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#70
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
