Stellar Occultation by (50000) Quaoar on 2019-05-28 (23:41:07 UT)
Event Details
Occultation UUID [and db] : d16a91f7-738c-4311-aeaa-928218a85b57 [observed]
Occultation Date + Time : 2019-05-28 at 23:41:07 UT +/- 0.05 min [1]
Object Designation : (50000) Quaoar
Star Designation : GDR3 4146010893851176704
Star Coordinates (ICRF) : RA = 18 10 38.9323, DE = -15 18 37.726 [2]
Star Magnitudes : G = 16.84 mag, RP = 15.76 mag, BP = 18.05 mag
Object Magnitude : V = 18.81 mag
Estimated Magnitude Drop : 2.1 mag
Estimated Max. Duration : 51.4 sec
Object Mean Diameter : 1126 km (src: astorb)
Orbital Class : TNO
Speed of the shadow : 21.9 km/s
Elongation to Moon & Sun : 91° (sunlit = 29%), Sun = 154°
Cross-track uncertainty : 1.7 mas = 51 km = 0.05 path-width (1-sig)
RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#45
Object is a <TNOs are Cool> target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0