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2024-08-11 / UCAC4 514-008961 / (256) Walpurga

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Tomas Janik, Bohuslav Matous O+ CCD T600 CZ GPS 01:13:48 01:14:45.80 01:14:48.17 01:15:21 0.02 0.05 2.37 66.8
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#72 : b8efcd40-c353-11ef-5276-a6449f8f79a3 [db: observed]
JPL#70 : 8328e060-8565-11ef-78cd-461cffbb36b6 [db: asteroids]

Using prediction b8efcd40-c353-11ef-5276-a6449f8f79a3 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2024-08-11, 01:14 UT (JD = 2460533.551)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 40711.016.660 220°, 73° 2.448894e611639.60.0° None2019-09-26 not scaled 2019-05-07
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] : b8efcd40-c353-11ef-5276-a6449f8f79a3 [observed]

 Occultation Date + Time   : 2024-08-11 at 01:17:28 UT +/- 0.0 min  [1]
 Object Designation        : (256) Walpurga
 Orbit Class               : MBA
 Star Designation          : GDR3 3296126819720545280
 Star Coordinates (ICRF)   : RA = 04 53 12.4799, DE = +12 36 05.000  [2]
 Star Magnitudes           : G = 13.65 mag, RP = 12.9 mag, BP = 14.27 mag
 Object Magnitude          : V = 16.06 mag
 Estimated Magnitude Drop  : 2.5 mag
 Estimated Max. Duration   : 2.3 sec
 Object Mean Diameter      : 63 km  (src: astorb)
 Speed of the shadow       : 28.2 km/s
 Elongation to Moon & Sun  : 136° (sunlit = 35%), Sun = 66°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#72

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

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