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):
Occultation UUID [and DB] : 9ffe508a-2e96-4cb6-9f6d-77829002189c [observed]
Occultation Date + Time : 2021-06-22 at 01:46:48 UT +/- 0.03 min [1]
Object Designation : (1269) Rollandia
Orbit Class : MBA
Star Designation : GDR3 4128998077378459392
Star Coordinates (ICRF) : RA = 16 56 21.2957, DE = -19 34 40.913 [2]
Star Magnitudes : G = 14.61 mag, RP = 13.96 mag, BP = 15.07 mag
Object Magnitude : V = 14.57 mag
Estimated Magnitude Drop : 0.7 mag
Estimated Max. Duration : 7.8 sec
Object Mean Diameter : 105 km (src: astorb)
Speed of the shadow : 13.4 km/s
Elongation to Moon & Sun : 22° (sunlit = 90%), Sun = 164°
Cross-track uncertainty : 1.7 mas = 3 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.68 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#60
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0