UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : d34b7ef9-dc05-4c0a-b531-95e83a363646 [observed]
Occultation Date + Time : 2006-10-23 at 21:15:02 UT +/- 0.05 min [1]
Object Designation : (177) Irma
Orbit Class : MBA
Star Designation : GDR3 2580706966103923584
Star Coordinates (ICRF) : RA = 00 59 03.9282, DE = +07 55 59.933 [2]
Star Magnitudes : G = 12.03 mag, RP = 11.51 mag, BP = 12.38 mag
Object Magnitude : V = 12.04 mag
Estimated Magnitude Drop : 0.8 mag
Estimated Max. Duration : 11.5 sec
Object Mean Diameter : 73 km (src: astorb)
Speed of the shadow : 6.4 km/s
Elongation to Moon & Sun : 148° (sunlit = 3%), Sun = 166°
Cross-track uncertainty : 10.3 mas = 8 km = 0.12 path-width (1-sig)
RUWE and duplicate source : 1.71 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#115
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0