UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
1 observation found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 917033d8-7db3-435c-8892-e32249408f90 [observed]
Occultation Date + Time : 2022-09-17 at 04:47:12 UT +/- 0.01 min [1]
Object Designation : (464) Megaira
Orbit Class : MBA
Star Designation : GDR3 0672636344351878656
Star Coordinates (ICRF) : RA = 07 37 37.1867, DE = +20 11 16.129 [2]
Star Magnitudes : G = 14.45 mag, RP = 14.09 mag, BP = 14.66 mag
Object Magnitude : V = 15.36 mag
Estimated Magnitude Drop : 1.3 mag
Estimated Max. Duration : 2.5 sec
Object Mean Diameter : 74 km (src: astorb)
Speed of the shadow : 29.5 km/s
Elongation to Moon & Sun : 37° (sunlit = 57%), Sun = 61°
Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#106
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0