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: sodis
Available (probably) matching predictions (click on the link to switch):
Occultation UUID [and DB] : 87365b70-85eb-11ef-78cd-456ab16f562f [asteroids]
Occultation Date + Time : 2025-07-20 at 23:10:56 UT +/- 0.01 min [1]
Object Designation : (551) Ortrud
Orbit Class : MBA
Star Designation : GDR3 4076861778604888192
Star Coordinates (ICRF) : RA = 18 39 43.8354, DE = -23 41 00.450 [2]
Star Magnitudes : G = 14.63 mag, RP = 13.63 mag, BP = 15.66 mag
Object Magnitude : V = 14.65 mag
Estimated Magnitude Drop : 0.8 mag
Estimated Max. Duration : 6.4 sec
Object Mean Diameter : 78.5 km (src: astorb)
Speed of the shadow : 12.3 km/s
Elongation to Moon & Sun : 148° (sunlit = 18%), Sun = 161°
Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 0.85 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#74
Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0