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2025-12-09 / UCAC4 369-173208 / (191) Kolga

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Antoni Selva, Carles Schnabel O+ VID M500 ES GPS 17:53:35 17:54:00.1 17:54:01.1 17:55:04 0.300 0.200 1.00 41.3
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#147 : d298b6f0-ddb8-11f0-547e-87f0affd0f78 [db: observed]

Using prediction d298b6f0-ddb8-11f0-547e-87f0affd0f78 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2025-12-09, 17:53 UT (JD = 2461019.245)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 40721.017.604 170°, -39° 2.450774e610245.20.0° None2019-09-26 not scaled 2019-05-07
# 40731.017.604 328°, -42° 2.450774e610245.20.0° None2019-09-26 not scaled 2019-05-07
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] : d298b6f0-ddb8-11f0-547e-87f0affd0f78 [observed]

 Occultation Date + Time   : 2025-12-09 at 17:52:18 UT +/- 0.0 min  [1]
 Object Designation        : (191) Kolga
 Orbit Class               : MBA
 Star Designation          : GDR3 4181639502955155200
 Star Coordinates (ICRF)   : RA = 19 43 52.5218, DE = -16 18 32.404  [2]
 Star Magnitudes           : G = 14.83 mag, RP = 14.19 mag, BP = 15.32 mag
 Object Magnitude          : V = 14.83 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 2.4 sec
 Object Mean Diameter      : 101.0 km  (src: astorb)
 Speed of the shadow       : 41.3 km/s
 Elongation to Moon & Sun  : 152° (sunlit = 72%), Sun = 37°
 Cross-track uncertainty   : 0.4 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#147
 Note                      : FP:true

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

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