Stellar Occultation by (87) Sylvia on 2019-10-29 (23:43:17 UT)
Event Details
Occultation UUID [and db] : dd8af650-75dd-4de0-9be5-683f37fda14c [observed]
Occultation Date + Time : 2019-10-29 at 23:43:17 UT +/- 0.02 min [1]
Object Designation : (87) Sylvia
Star Designation : GDR3 0679856115656562048
Star Coordinates (ICRF) : RA = 08 21 01.7465, DE = +25 57 43.126 [2]
Star Magnitudes : G = 9.9 mag, RP = 9.47 mag, BP = 10.17 mag
Object Magnitude : V = 13.34 mag
Estimated Magnitude Drop : 3.5 mag
Estimated Max. Duration : 21.0 sec
Object Mean Diameter : 261 km (src: astorb)
Orbital Class : MBA
Speed of the shadow : 12.4 km/s
Elongation to Moon & Sun : 119° (sunlit = 5%), Sun = 95°
Cross-track uncertainty : 1.0 mas = 2 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 0.91 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#114
Object is a <Gaia mass determination> target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0