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] : 31bb7b0f-e26d-4eb2-9654-216a00376a07 [observed]
Occultation Date + Time : 2018-09-27 at 00:09:47 UT +/- 0.01 min [1]
Object Designation : (1573) Vaisala
Orbit Class : MBA
Star Designation : GDR3 4303197076122839296
Star Coordinates (ICRF) : RA = 19 52 37.8013, DE = +09 50 42.383 [2]
Star Magnitudes : G = 15.06 mag, RP = 14.4 mag, BP = 15.55 mag
Object Magnitude : V = 15.57 mag
Estimated Magnitude Drop : 1.0 mag
Estimated Max. Duration : 0.7 sec
Object Mean Diameter : 10 km (src: astorb)
Speed of the shadow : 14.1 km/s
Elongation to Moon & Sun : 87° (sunlit = 96%), Sun = 115°
Cross-track uncertainty : 1.3 mas = 1 km = 0.12 path-width (1-sig)
RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#59
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0