2012-09-26 / TYC 1158-01017-1 / (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++
02:11:33
02:12:33.18
02:12:41.70
02:14:47
0.08
0.08
8.52
138.0
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 6b948cf6-3e7c-486d-bd35-f1289fadf981 for map and profile fit
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Event Details
Occultation UUID [and DB] : 6b948cf6-3e7c-486d-bd35-f1289fadf981 [observed]
Occultation Date + Time : 2012-09-26 at 02:09:16 UT +/- 0.02 min [1]
Object Designation : (2241) Alcathous
Orbit Class : JTRO
Star Designation : GDR3 2731753853438397184
Star Coordinates (ICRF) : RA = 22 40 17.4266, DE = +13 07 54.064 [2]
Star Magnitudes : G = 10.2 mag, RP = 9.38 mag, BP = 10.93 mag
Object Magnitude : V = 16.0 mag
Estimated Magnitude Drop : 5.8 mag
Estimated Max. Duration : 7.1 sec
Object Mean Diameter : 115 km (src: astorb)
Speed of the shadow : 16.2 km/s
Elongation to Moon & Sun : 34° (sunlit = 83%), Sun = 154°
Cross-track uncertainty : 2.7 mas = 8 km = 0.08 path-width (1-sig)
RUWE and duplicate source : 0.98 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)