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2026-06-22 / UCAC4 353-110108 / (797) Montana

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Javier Prat, Pedro Martorell O+ CCD M310 ES GPS 23:22:39 23:24:37.6 23:24:39.4 23:26:38 0.300 0.300 1.80 17.3
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#67 : 74f056e0-33d3-11f1-6999-4d3bbb6f0c40 [db: asteroids]
JPL#67 : 74f0a500-33d3-11f1-6999-c3c8bffc3a87 [db: asteroids]

Using prediction 74f0a500-33d3-11f1-6999-c3c8bffc3a87 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2026-06-22, 23:23 UT (JD = 2461214.474)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 964None4.546 6°, 61° 2.450966e610248.50.0° NoneNone not scaled 2016-01-04
# 965None4.546 179°, 45° 2.450966e610248.50.0° NoneNone not scaled 2016-01-04
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] : 74f0a500-33d3-11f1-6999-c3c8bffc3a87 [asteroids]

 Occultation Date + Time   : 2026-06-22 at 23:22:20 UT +/- 0.0 min  [1]
 Object Designation        : (797) Montana
 Orbit Class               : MBA
 Star Designation          : GDR3 4119893399544061952
 Star Coordinates (ICRF)   : RA = 17 44 46.0663, DE = -19 27 42.677  [2]
 Star Magnitudes           : G = 11.93 mag, RP = 10.56 mag, BP = 14.28 mag
 Object Magnitude          : V = 13.29 mag
 Estimated Magnitude Drop  : 1.6 mag
 Estimated Max. Duration   : 3.0 sec
 Object Mean Diameter      : 28.4 km  (src: astorb)
 Speed of the shadow       : 9.6 km/s
 Elongation to Moon & Sun  : 73° (sunlit = 61%), Sun = 174°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.71 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67
 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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