UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
1 observation found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 6f9210a1-9519-492c-b9f1-f6b417757c05 [observed]
Occultation Date + Time : 2020-04-10 at 21:33:05 UT +/- 0.02 min [1]
Object Designation : (7286) 1990 QZ4
Orbit Class : MBA
Star Designation : GDR3 0671854247987646720
Star Coordinates (ICRF) : RA = 07 49 39.4007, DE = +19 45 30.660 [2]
Star Magnitudes : G = 13.44 mag, RP = 12.84 mag, BP = 13.89 mag
Object Magnitude : V = 18.3 mag
Estimated Magnitude Drop : 4.9 mag
Estimated Max. Duration : 0.9 sec
Object Mean Diameter : 12 km (src: astorb)
Speed of the shadow : 13.3 km/s
Elongation to Moon & Sun : 125° (sunlit = 89%), Sun = 94°
Cross-track uncertainty : 1.0 mas = 2 km = 0.19 path-width (1-sig)
RUWE and duplicate source : 5.1 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#56
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0