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] : c1524a6f-8689-45bc-abbd-9853893d2a16 [observed]
Occultation Date + Time : 2020-01-16 at 21:07:27 UT +/- 0.02 min [1]
Object Designation : (2058) Roka
Orbit Class : MBA
Star Designation : GDR3 3414809754090950528
Star Coordinates (ICRF) : RA = 05 18 18.3203, DE = +22 45 39.269 [2]
Star Magnitudes : G = 13.95 mag, RP = 13.24 mag, BP = 14.5 mag
Object Magnitude : V = 17.17 mag
Estimated Magnitude Drop : 3.3 mag
Estimated Max. Duration : 2.1 sec
Object Mean Diameter : 21 km (src: astorb)
Speed of the shadow : 10.3 km/s
Elongation to Moon & Sun : 117° (sunlit = 58%), Sun = 144°
Cross-track uncertainty : 0.7 mas = 1 km = 0.06 path-width (1-sig)
RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#62
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
