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2026-04-18 / UCAC4 313-227297 / (160) Una

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Deborah Smith, Eric Smith O+ VID M280 ES GPS 03:26:55 03:27:48.000 03:27:59.400 03:28:55 0.659 0.659 11.40 82.1
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: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#73 : 16d86800-33be-11f1-6999-20c1f3dfa668 [db: asteroids]

Using prediction 16d86800-33be-11f1-6999-20c1f3dfa668 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2026-04-18, 03:27 UT (JD = 2461148.644)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 169None11.033 125°, -33° 2.445254e615894.60.0° None2010-04-15 not scaled 2009-05-29
# 170None11.033 308°, -41° 2.445254e615894.60.0° None2010-04-15 not scaled 2009-05-29
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] : 16d86800-33be-11f1-6999-20c1f3dfa668 [asteroids]

 Occultation Date + Time   : 2026-04-18 at 03:35:54 UT +/- 0.01 min  [1]
 Object Designation        : (160) Una
 Orbit Class               : MBA
 Star Designation          : GDR3 4072511565207332480
 Star Coordinates (ICRF)   : RA = 18 38 43.7106, DE = -27 29 42.512  [2]
 Star Magnitudes           : G = 14.04 mag, RP = 13.06 mag, BP = 15.03 mag
 Object Magnitude          : V = 14.28 mag
 Estimated Magnitude Drop  : 0.9 mag
 Estimated Max. Duration   : 11.3 sec
 Object Mean Diameter      : 81.2 km  (src: astorb)
 Speed of the shadow       : 7.2 km/s
 Elongation to Moon & Sun  : 119° (sunlit = 1%), Sun = 109°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#73
 Note                      : FP:true

 Object is a "TNOs are cool" target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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