2022-11-11 / 4UC 347-179215 / (465) Alekto
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Matthieu Conjat
O+
CCD
M400
FR
GPS++
17:31:50
17:33:02.84
17:33:04.64
17:33:25
0.15
0.15
1.80
55.8
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 25e12315-1c8f-4dfe-86ea-102295d62aa9 for map and profile fit
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Event Details
Occultation UUID [and DB] : 25e12315-1c8f-4dfe-86ea-102295d62aa9 [observed]
Occultation Date + Time : 2022-11-11 at 17:31:25 UT +/- 0.02 min [1]
Object Designation : (465) Alekto
Star Designation : GDR3 6868322549404294400
Star Coordinates (ICRF) : RA = 19 40 43.2309, DE = -20 37 29.975 [2]
Star Magnitudes : G = 12.76 mag, RP = 11.91 mag, BP = 13.53 mag
Object Magnitude : V = 15.71 mag
Estimated Magnitude Drop : 3.0 mag
Estimated Max. Duration : 2.4 sec
Object Mean Diameter : 73 km (src: astorb+H10)
Speed of the shadow : 31.0 km/s
Elongation to Moon & Sun : 153° (sunlit = 90%), Sun = 64°
Cross-track uncertainty : 4.7 mas = 10 km = 0.15 path-width (1-sig)
RUWE and duplicate source : 1.27 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#66 (23-01-08)
[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)