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):
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] : fdcbd2f9-b137-443c-b86e-65adc4d57c48 [observed]
Occultation Date + Time : 2021-12-13 at 00:17:16 UT +/- 0.01 min [1]
Object Designation : (747) Winchester
Orbit Class : MBA
Star Designation : GDR3 3913146391308537472
Star Coordinates (ICRF) : RA = 11 48 04.6730, DE = +10 10 35.441 [2]
Star Magnitudes : G = 14.99 mag, RP = 14.49 mag, BP = 15.33 mag
Object Magnitude : V = 13.67 mag
Estimated Magnitude Drop : 0.3 mag
Estimated Max. Duration : 10.6 sec
Object Mean Diameter : 172 km (src: astorb)
Speed of the shadow : 16.3 km/s
Elongation to Moon & Sun : 159° (sunlit = 69%), Sun = 88°
Cross-track uncertainty : 1.0 mas = 2 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#125
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
