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2025-04-08 / UCAC4 480-040500 / (3405) Daiwensai

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Andrea Manna O+ VID M200 CH GPS 20:10:17 20:13:32.85 20:13:33.97 20:15:36 0.08 0.08 1.12 12.1
2 show Alberto Ossola O- VID M230 CH GPS 20:12:13 20:14:57
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#63 : 05a11610-8940-11ef-78cd-a8aeffad62ba [db: asteroids]

Using prediction 05a11610-8940-11ef-78cd-a8aeffad62ba for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 05a11610-8940-11ef-78cd-a8aeffad62ba [asteroids]

 Occultation Date + Time   : 2025-04-08 at 20:08:14 UT +/- 0.0 min  [1]
 Object Designation        : (3405) Daiwensai
 Orbit Class               : MBA
 Star Designation          : GDR3 3143747015058023552
 Star Coordinates (ICRF)   : RA = 07 52 36.3777, DE = +05 58 17.483  [2]
 Star Magnitudes           : G = 11.49 mag, RP = 10.83 mag, BP = 11.99 mag
 Object Magnitude          : V = 17.69 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 2.1 sec
 Object Mean Diameter      : 22.3 km  (src: astorb)
 Speed of the shadow       : 10.8 km/s
 Elongation to Moon & Sun  : 38° (sunlit = 85%), Sun = 99°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63

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

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