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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1 observation 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] : fb046794-72ef-41ce-bf2f-26c54a59ca48 [observed]
Occultation Date + Time : 2020-09-18 at 04:30:30 UT +/- 0.02 min [1]
Object Designation : (283) Emma
Orbit Class : MBA
Star Designation : GDR3 0156481880688353920
Star Coordinates (ICRF) : RA = 05 09 51.3491, DE = +31 08 51.247 [2]
Star Magnitudes : G = 14.72 mag, RP = 13.64 mag, BP = 14.91 mag
Object Magnitude : V = 14.07 mag
Estimated Magnitude Drop : 0.5 mag
Estimated Max. Duration : 11.5 sec
Object Mean Diameter : 148 km (src: astorb)
Speed of the shadow : 12.9 km/s
Elongation to Moon & Sun : 106° (sunlit = 1%), Sun = 96°
Cross-track uncertainty : 4.2 mas = 7 km = 0.05 path-width (1-sig)
RUWE and duplicate source : 1.22 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#106
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
