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2026-03-19 / UCAC4 563-012654 / (1645) Waterfield

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Andreas Schweizer O- VID M250 CH GPS 20:16:20 :: :: 20:17:21
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#77 : 5ad22e80-de71-11f0-4858-353ddddb7f94 [db: asteroids]

Using prediction 5ad22e80-de71-11f0-4858-353ddddb7f94 for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 5ad22e80-de71-11f0-4858-353ddddb7f94 [asteroids]

 Occultation Date + Time   : 2026-03-19 at 20:14:06 UT +/- 0.0 min  [1]
 Object Designation        : (1645) Waterfield
 Orbit Class               : MBA
 Star Designation          : GDR3 3413201267362835328
 Star Coordinates (ICRF)   : RA = 04 53 53.5207, DE = +22 25 21.789  [2]
 Star Magnitudes           : G = 14.24 mag, RP = 13.53 mag, BP = 14.76 mag
 Object Magnitude          : V = 16.93 mag
 Estimated Magnitude Drop  : 2.8 mag
 Estimated Max. Duration   : 1.3 sec
 Object Mean Diameter      : 30.6 km  (src: astorb)
 Speed of the shadow       : 23.9 km/s
 Elongation to Moon & Sun  : 65° (sunlit = 1%), Sun = 76°
 Cross-track uncertainty   : 0.5 mas = 1 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 2.22 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#77
 Note                      : FP:true

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

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