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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3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : d8920954-dcc7-46b5-8d88-913ce6716bd2 [observed]
Occultation Date + Time : 2018-04-25 at 22:07:15 UT +/- 0.01 min [1]
Object Designation : (17701) 1997 GU41
Orbit Class : MBA
Star Designation : GDR3 3435665015769648896
Star Coordinates (ICRF) : RA = 06 28 44.6606, DE = +31 06 55.615 [2]
Star Magnitudes : G = 11.69 mag, RP = 10.96 mag, BP = 12.28 mag
Object Magnitude : V = 18.66 mag
Estimated Magnitude Drop : 7.0 mag
Estimated Max. Duration : 0.3 sec
Object Mean Diameter : 10 km (src: astorb)
Speed of the shadow : 30.9 km/s
Elongation to Moon & Sun : 68° (sunlit = 82%), Sun = 61°
Cross-track uncertainty : 1.0 mas = 2 km = 0.25 path-width (1-sig)
RUWE and duplicate source : 1.26 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#48
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0