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2023-12-23 / UCAC4 540-010626 / (498) Tokio

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Faustino Garcia O+ VID T250 ES GPS 21:04:46 21:05:47.47 21:05:49.18 21:06:46 0.31 0.31 1.71 19.0
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):
JPL#100 : 3f2405c9-12c0-42f4-9758-a46d8b4cbed5 [db: observed]
JPL#106 : 20d00910-c341-11ef-5276-0b7d736b5b2b [db: observed]

Using prediction 3f2405c9-12c0-42f4-9758-a46d8b4cbed5 for map and profile fit

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Map with groundtrack and observer stations

Occ by (498) Tokio on 2023-12-23

Unavailable
300 km

Event Details
 Occultation UUID [and DB] : 3f2405c9-12c0-42f4-9758-a46d8b4cbed5 [observed]

 Occultation Date + Time   : 2023-12-23 at 21:01:27 UT +/- 0.02 min  [1]
 Object Designation        : (498) Tokio
 Orbit Class               : MBA
 Star Designation          : GDR3 3406385536516164224
 Star Coordinates (ICRF)   : RA = 04 47 34.1910, DE = +17 50 46.154  [2]
 Star Magnitudes           : G = 13.68 mag, RP = 13.0 mag, BP = 14.2 mag
 Object Magnitude          : V = 12.62 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 7.5 sec
 Object Mean Diameter      : 82.8 km  (src: astorb)
 Speed of the shadow       : 11.1 km/s
 Elongation to Moon & Sun  : 20° (sunlit = 90%), Sun = 160°
 Cross-track uncertainty   : 3.3 mas = 4 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#100

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

More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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Aladin Sky Atlas
04 47 34.191 +17 50 46.15
FoV: 29.96'
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