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2026-07-18 / UCAC4 350-186090 / (2455) Somville

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Simon Kidd O+ VID M350 GB GPS 23:50:47 23:51:46.51 23:51:48.06 23:52:47 0.050 0.050 1.55 18.8
2 show Sven Andersson O+ VID M360 DE GPS 23:50:02 23:50:30.984 23:50:32.270 23:51:02 0.074 0.074 1.29 15.6
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):
JPL71 : f53b7be0-d9aa-11f1-43f3-1c79e73bb519 [db: observed]

Using prediction f53b7be0-d9aa-11f1-43f3-1c79e73bb519 for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result:
Circular profile fit was not successful ...








You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Sky projection (artificial light) for occ. time: 2026-07-18, 23:51 UT (JD = 2461240.494)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 784None2.829 224°, -68° 2.450921e610319.50.0° preliminary modelNone not scaled 2015-08-08
# 785None2.829 39°, -48° 2.450921e610319.50.0° preliminary modelNone not scaled 2015-08-08
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

   
Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : f53b7be0-d9aa-11f1-43f3-1c79e73bb519 [observed]

 Occultation Date + Time   : 2026-07-18 at 23:51:15 UT +/- 0.0 min  [1]
 Object Designation        : (2455) Somville
 Orbit Class               : MBA
 Star Designation          : GDR3 6854415793195237888
 Star Coordinates (ICRF)   : RA = 20 13 40.6476, DE = -20 10 18.699  [2]
 Star Magnitudes           : G = 12.93 mag, RP = 12.44 mag, BP = 13.26 mag
 Object Magnitude          : V = 15.84 mag
 Estimated Magnitude Drop  : 3.0 mag
 Estimated Max. Duration   : 1.1 sec
 Object Mean Diameter      : 13.3 km  (src: astorb)
 Speed of the shadow       : 12.1 km/s
 Elongation to Moon & Sun  : 124° (sunlit = 26%), Sun = 175°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL71
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
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