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2023-07-08 / UCAC4 403-079824 / (2187) La Silla

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Peter Delincak O- VID M400 SK NTP 21:42:17 21:46:26
2 show Daniel Blazewicz O- VID M350 PL GPS 21:42:50 21:45:27
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#65 : c99c6600-ddb3-11f0-547e-18f7defe6248 [db: observed]
JPL#65 : c99c6600-ddb3-11f0-547e-3b20dff73feb [db: observed]

Using prediction c99c6600-ddb3-11f0-547e-3b20dff73feb for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : c99c6600-ddb3-11f0-547e-3b20dff73feb [observed]

 Occultation Date + Time   : 2023-07-08 at 21:47:37 UT +/- 0.0 min  [1]
 Object Designation        : (2187) La Silla
 Orbit Class               : MBA
 Star Designation          : GDR3 4157633758208313472
 Star Coordinates (ICRF)   : RA = 18 19 40.8446, DE = -09 28 15.798  [2]
 Star Magnitudes           : G = 14.1 mag, RP = 12.87 mag, BP = 15.79 mag
 Object Magnitude          : V = 16.88 mag
 Estimated Magnitude Drop  : 2.9 mag
 Estimated Max. Duration   : 0.6 sec
 Object Mean Diameter      : 6.4 km  (src: astorb)
 Speed of the shadow       : 10.7 km/s
 Elongation to Moon & Sun  : 87° (sunlit = 63%), Sun = 162°
 Cross-track uncertainty   : 0.1 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#65
 Note                      : FP:true

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

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