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] : 6531e8f5-15f5-4af6-b804-09f108608c6d [observed]
Occultation Date + Time : 2023-12-04 at 05:25:53 UT +/- 0.05 min [1]
Object Designation : (66039) 1998 QS74
Orbit Class : MBA
Star Designation : GDR3 0236706337861821184
Star Coordinates (ICRF) : RA = 03 36 08.9678, DE = +40 36 58.865 [2]
Star Magnitudes : G = 10.92 mag, RP = 10.43 mag, BP = 11.23 mag
Object Magnitude : V = 18.31 mag
Estimated Magnitude Drop : 7.4 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 5 km (src: astorb)
Speed of the shadow : 13.1 km/s
Elongation to Moon & Sun : 88° (sunlit = 60%), Sun = 157°
Cross-track uncertainty : 3.0 mas = 4 km = 0.79 path-width (1-sig)
RUWE and duplicate source : 3.22 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#40
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0