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2020-02-07 / 4UC 496-054920 / (474) Prudentia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Pierre Le Cam O+ CCD M250 FR GPS++ 00:20:31 00:22:30.10 00:22:30.85 00:24:31 0.15 0.15 0.75 11.1
2 show Thierry Midavaine O- CCD M356 FR 00:20:57 00:23:50
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: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#65 : b4cc2803-e07f-477a-96e1-255cbbb671c2 [db: observed]

Using prediction b4cc2803-e07f-477a-96e1-255cbbb671c2 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2020-02-07, 00:22 UT (JD = 2458886.515)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1210None8.572 135°, -65° 2.450894e67992.50.0° NoneNone not scaled 2016-01-04
# 1211None8.572 301°, -51° 2.450894e67992.50.0° NoneNone not scaled 2016-01-04
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] : b4cc2803-e07f-477a-96e1-255cbbb671c2 [observed]

 Occultation Date + Time   : 2020-02-07 at 00:20:19 UT +/- 0.01 min  [1]
 Object Designation        : (474) Prudentia
 Orbit Class               : MBA
 Star Designation          : GDR3 3855036033549523072
 Star Coordinates (ICRF)   : RA = 09 42 59.3686, DE = +09 04 20.733  [2]
 Star Magnitudes           : G = 13.32 mag, RP = 12.84 mag, BP = 13.63 mag
 Object Magnitude          : V = 15.11 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 2.5 sec
 Object Mean Diameter      : 38 km  (src: astorb)
 Speed of the shadow       : 14.8 km/s
 Elongation to Moon & Sun  : 39° (sunlit = 93%), Sun = 172°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#65

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

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