UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 7753f884-a6b3-4da4-b51a-078aaed65d20 [observed]
Occultation Date + Time : 2017-04-04 at 04:37:16 UT +/- 0.0 min [1]
Object Designation : (205) Martha
Orbit Class : MBA
Star Designation : GDR3 4189930404743739008
Star Coordinates (ICRF) : RA = 19 46 53.6118, DE = -11 28 46.534 [2]
Star Magnitudes : G = 12.14 mag, RP = 11.63 mag, BP = 12.49 mag
Object Magnitude : V = 15.02 mag
Estimated Magnitude Drop : 2.9 mag
Estimated Max. Duration : 3.4 sec
Object Mean Diameter : 81 km (src: astorb)
Speed of the shadow : 24.1 km/s
Elongation to Moon & Sun : 171° (sunlit = 55%), Sun = 78°
Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 0.87 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#66
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0