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] : 6b22fcb0-c35b-11ef-5276-55dfddebfb86 [observed]
Occultation Date + Time : 2024-12-20 at 22:22:02 UT +/- 0.0 min [1]
Object Designation : (2688) Halley
Orbit Class : MBA
Star Designation : GDR3 3425309673522243456
Star Coordinates (ICRF) : RA = 06 09 20.4780, DE = +23 07 18.995 [2]
Star Magnitudes : G = 12.96 mag, RP = 12.57 mag, BP = 13.2 mag
Object Magnitude : V = 16.91 mag
Estimated Magnitude Drop : 4.0 mag
Estimated Max. Duration : 1.4 sec
Object Mean Diameter : 21.5 km (src: astorb)
Speed of the shadow : 15.8 km/s
Elongation to Moon & Sun : 65° (sunlit = 69%), Sun = 177°
Cross-track uncertainty : 0.3 mas = 0 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.29 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#63
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
