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):
Occultation UUID [and DB] : 7fec6ff8-a554-40de-9a7a-d66adf2cb5c1 [observed]
Occultation Date + Time : 2021-11-06 at 21:59:15 UT +/- 0.05 min [1]
Object Designation : (22978) Nyrola
Orbit Class : MBA
Star Designation : GDR3 3314494917376929152
Star Coordinates (ICRF) : RA = 04 26 46.1471, DE = +18 32 43.000 [2]
Star Magnitudes : G = 13.89 mag, RP = 13.12 mag, BP = 14.5 mag
Object Magnitude : V = 16.36 mag
Estimated Magnitude Drop : 2.6 mag
Estimated Max. Duration : 0.8 sec
Object Mean Diameter : 7 km (src: astorb)
Speed of the shadow : 8.3 km/s
Elongation to Moon & Sun : 173° (sunlit = 6%), Sun = 157°
Cross-track uncertainty : 1.7 mas = 1 km = 0.22 path-width (1-sig)
RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#50
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0