2019-03-22 / 4UC 351-063280 / (2241) Alcathous
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show E. Frappa/A. Klotz
O+
CCD
M250
CL
GPS++
23:55:26
23:56:00.97
23:56:09.08
23:58:44
0.23
0.15
8.11
128.9
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):
Using prediction 11fc65c6-4ac8-4106-afb1-91aabddee7f4 for map and profile fit
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Event Details
Occultation UUID [and DB] : 11fc65c6-4ac8-4106-afb1-91aabddee7f4 [observed]
Occultation Date + Time : 2019-03-22 at 23:52:15 UT +/- 0.02 min [1]
Object Designation : (2241) Alcathous
Orbit Class : JTRO
Star Designation : GDR3 3545055388959637632
Star Coordinates (ICRF) : RA = 11 33 48.3046, DE = -19 52 21.956 [2]
Star Magnitudes : G = 12.52 mag, RP = 11.83 mag, BP = 13.05 mag
Object Magnitude : V = 15.36 mag
Estimated Magnitude Drop : 2.9 mag
Estimated Max. Duration : 7.2 sec
Object Mean Diameter : 115 km (src: astorb)
Speed of the shadow : 15.9 km/s
Elongation to Moon & Sun : 36° (sunlit = 95%), Sun = 159°
Cross-track uncertainty : 3.0 mas = 8 km = 0.07 path-width (1-sig)
RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#88
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)