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] : 7fe9c39e-ce40-4a7b-85b5-5ec8e0faa23f [observed]
Occultation Date + Time : 2021-06-14 at 23:55:35 UT +/- 0.03 min [1]
Object Designation : (1200) Imperatrix
Orbit Class : MBA
Star Designation : GDR3 4144773561005848448
Star Coordinates (ICRF) : RA = 17 52 14.8562, DE = -17 00 36.224 [2]
Star Magnitudes : G = 15.71 mag, RP = 14.63 mag, BP = 16.93 mag
Object Magnitude : V = 14.66 mag
Estimated Magnitude Drop : 0.4 mag
Estimated Max. Duration : 3.8 sec
Object Mean Diameter : 40 km (src: astorb)
Speed of the shadow : 10.4 km/s
Elongation to Moon & Sun : 131° (sunlit = 19%), Sun = 172°
Cross-track uncertainty : 0.7 mas = 0 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 1.04 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
