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] : ac925a14-cc77-4d98-badb-513d76fbe389 [observed]
Occultation Date + Time : 2021-12-27 at 01:13:10 UT +/- 0.03 min [1]
Object Designation : (13986) 1992 WA4
Orbit Class : MBA
Star Designation : GDR3 3440949852767915904
Star Coordinates (ICRF) : RA = 05 40 49.4848, DE = +25 59 22.050 [2]
Star Magnitudes : G = 10.77 mag, RP = 9.97 mag, BP = 11.45 mag
Object Magnitude : V = 17.45 mag
Estimated Magnitude Drop : 6.7 mag
Estimated Max. Duration : 0.6 sec
Object Mean Diameter : 8 km (src: astorb)
Speed of the shadow : 12.2 km/s
Elongation to Moon & Sun : 99° (sunlit = 51%), Sun = 170°
Cross-track uncertainty : 2.0 mas = 2 km = 0.38 path-width (1-sig)
RUWE and duplicate source : 1.04 mas, dup.src = 1 (0:false, 1:true)
Ephemeris Reference : JPL#42
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0