UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 80387474-c93c-4ac4-a7bd-ea797cad4994 [observed]
Occultation Date + Time : 2002-05-26 at 01:31:55 UT +/- 0.05 min [1]
Object Designation : (131) Vala
Orbit Class : MBA
Star Designation : GDR3 4114112515344866944
Star Coordinates (ICRF) : RA = 17 13 59.7001, DE = -24 07 15.362 [2]
Star Magnitudes : G = 11.69 mag, RP = 11.21 mag, BP = 12.01 mag
Object Magnitude : V = 12.87 mag
Estimated Magnitude Drop : 1.5 mag
Estimated Max. Duration : 4.7 sec
Object Mean Diameter : 40 km (src: astorb)
Speed of the shadow : 8.5 km/s
Elongation to Moon & Sun : 21° (sunlit = 100%), Sun = 165°
Cross-track uncertainty : 4.3 mas = 4 km = 0.10 path-width (1-sig)
RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#94
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0