2026-04-17 / UCAC4 383-065030 / (309) Fraternitas
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Alfonso Noschese
O+
VID
M450
IT
GPS
21:15:22
21:16:01.2
21:16:02.9
21:16:50
0.200
0.300
1.70
20.1
2
show Ettore Marmo
O-
VID
M300
IT
GPS
21:14:41
::
::
21:18:11
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More 2 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 8dc56800-33c3-11f1-6999-12477f7fbd1a for map and profile fit
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Event Details
Occultation UUID [and DB] : 8dc56800-33c3-11f1-6999-12477f7fbd1a [asteroids]
Occultation Date + Time : 2026-04-17 at 21:11:17 UT +/- 0.0 min [1]
Object Designation : (309) Fraternitas
Orbit Class : MBA
Star Designation : GDR3 3607175807359584512
Star Coordinates (ICRF) : RA = 13 37 09.6354, DE = -13 24 16.918 [2]
Star Magnitudes : G = 14.56 mag, RP = 14.09 mag, BP = 14.85 mag
Object Magnitude : V = 14.08 mag
Estimated Magnitude Drop : 0.5 mag
Estimated Max. Duration : 3.9 sec
Object Mean Diameter : 45.3 km (src: astorb)
Speed of the shadow : 11.8 km/s
Elongation to Moon & Sun : 174° (sunlit = 0%), Sun = 177°
Cross-track uncertainty : 1.0 mas = 1 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 0.91 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#88
Note : FP:true
[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)
