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] : 6795cac7-e615-4252-9b85-043be17859f4 [observed]
Occultation Date + Time : 2019-01-14 at 23:28:32 UT +/- 0.02 min [1]
Object Designation : (227) Philosophia
Orbit Class : MBA
Star Designation : GDR3 0181621355063273344
Star Coordinates (ICRF) : RA = 05 08 04.6790, DE = +33 06 13.671 [2]
Star Magnitudes : G = 13.62 mag, RP = 13.02 mag, BP = 14.05 mag
Object Magnitude : V = 14.81 mag
Estimated Magnitude Drop : 1.5 mag
Estimated Max. Duration : 7.6 sec
Object Mean Diameter : 87 km (src: astorb)
Speed of the shadow : 11.5 km/s
Elongation to Moon & Sun : 49° (sunlit = 57%), Sun = 143°
Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#65
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0