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2025-10-23 / TYC 6278-02496-1 / (124) Alkeste

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Antuszewicz O+ VID M300 PL NTP 17:57:37 17:58:35.24 17:58:37.28 17:59:36 0.120 0.080 2.04 62.4
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#164 : 9d08b580-ddb8-11f0-547e-3c8bf97f8ed3 [db: observed]

Using prediction 9d08b580-ddb8-11f0-547e-3c8bf97f8ed3 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2025-10-23, 17:57 UT (JD = 2460972.248)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 45111.09.907 136°, 16° 2.457359e63613.20.0° None2020-10-05 not scaled 2019-10-23
# 45121.09.907 313°, 11° 2.457359e63613.20.0° None2020-10-05 not scaled 2019-10-23
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] : 9d08b580-ddb8-11f0-547e-3c8bf97f8ed3 [observed]

 Occultation Date + Time   : 2025-10-23 at 17:57:03 UT +/- 0.0 min  [1]
 Object Designation        : (124) Alkeste
 Orbit Class               : MBA
 Star Designation          : GDR3 4091887635792205696
 Star Coordinates (ICRF)   : RA = 18 30 18.9967, DE = -20 42 14.688  [2]
 Star Magnitudes           : G = 11.72 mag, RP = 10.81 mag, BP = 12.59 mag
 Object Magnitude          : V = 13.2 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 2.5 sec
 Object Mean Diameter      : 76.4 km  (src: astorb)
 Speed of the shadow       : 30.6 km/s
 Elongation to Moon & Sun  : 43° (sunlit = 4%), Sun = 67°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.73 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#164
 Note                      : FP:true

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

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