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] : 822fc10e-eda3-40a3-a76c-511518b9c6c4 [observed]
Occultation Date + Time : 2021-02-11 at 22:08:28 UT +/- 0.02 min [1]
Object Designation : (4059) Balder
Orbit Class : MBA
Star Designation : GDR3 3155812712063667968
Star Coordinates (ICRF) : RA = 07 25 33.2696, DE = +10 12 47.019 [2]
Star Magnitudes : G = 13.45 mag, RP = 13.08 mag, BP = 13.67 mag
Object Magnitude : V = 16.62 mag
Estimated Magnitude Drop : 3.2 mag
Estimated Max. Duration : 1.6 sec
Object Mean Diameter : 16 km (src: astorb)
Speed of the shadow : 10.2 km/s
Elongation to Moon & Sun : 143° (sunlit = 0%), Sun = 146°
Cross-track uncertainty : 2.3 mas = 3 km = 0.24 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#62
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0