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2026-09-27 / UCAC4 343-173354 / (407) Arachne

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Alfonso Noschese O+ VID M450 IT GPS 18:12:18 18:12:56.3 18:12:59.0 18:13:46 0.400 0.400 2.70 37.0
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):
JPL80 : 17cb46c0-d9b2-11f1-43f3-b754a2fef373 [db: observed]

Using prediction 17cb46c0-d9b2-11f1-43f3-b754a2fef373 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2026-09-27, 18:11 UT (JD = 2461311.258)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 813None22.626 43°, -58° 2.446447e614864.30.0° NoneNone not scaled 2016-01-04
# 814None22.626 241°, -63° 2.446447e614864.30.0° 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] : 17cb46c0-d9b2-11f1-43f3-b754a2fef373 [observed]

 Occultation Date + Time   : 2026-09-27 at 18:10:17 UT +/- 0.0 min  [1]
 Object Designation        : (407) Arachne
 Orbit Class               : MBA
 Star Designation          : GDR3 4078989711566202112
 Star Coordinates (ICRF)   : RA = 18 48 13.0896, DE = -21 30 53.478  [2]
 Star Magnitudes           : G = 14.69 mag, RP = 13.76 mag, BP = 15.6 mag
 Object Magnitude          : V = 14.02 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 6.9 sec
 Object Mean Diameter      : 95.1 km  (src: astorb)
 Speed of the shadow       : 13.7 km/s
 Elongation to Moon & Sun  : 97° (sunlit = 99%), Sun = 97°
 Cross-track uncertainty   : 0.8 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL80
 Note                      : FP:true

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

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