Stellar Occultation by (50000) Quaoar on 2012-02-17 (04:30:44 UT)
Event Details
Occultation UUID [and db] : b0e95584-617a-4bf7-a52e-548dcbdd8184 [observed]
Occultation Date + Time : 2012-02-17 at 04:30:44 UT +/- 0.09 min [1]
Object Designation : (50000) Quaoar
Star Designation : GDR3 4125098801168495104
Star Coordinates (ICRF) : RA = 17 34 21.8456, DE = -15 42 10.494 [2]
Star Magnitudes : G = 14.82 mag, RP = 13.9 mag, BP = 15.72 mag
Object Magnitude : V = 18.96 mag
Estimated Magnitude Drop : 4.2 mag
Estimated Max. Duration : 60.9 sec
Object Mean Diameter : 1126 km (src: astorb)
Orbital Class : TNO
Speed of the shadow : 18.5 km/s
Elongation to Moon & Sun : 8° (sunlit = 24%), Sun = 64°
Cross-track uncertainty : 2.3 mas = 72 km = 0.06 path-width (1-sig)
RUWE and duplicate source : 0.97 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