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2018-02-15 / HIP 42917 / (189) Phthia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Donatas Tamonis O+ CCD M200 LT RAD 20:13:57 20:14:34.23 20:14:37.87 20:15:11 0.03 0.03 3.64 38.6
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: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#107 : ccfb4f30-faa3-416e-ab02-3345d6c2f236 [db: observed]

Using prediction ccfb4f30-faa3-416e-ab02-3345d6c2f236 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2018-02-15, 20:14 UT (JD = 2458165.343)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 947None22.342 197°, 45° 2.444825e613340.30.0° NoneNone not scaled 2016-01-04
# 948None22.342 26°, 35° 2.444825e613340.30.0° 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] : ccfb4f30-faa3-416e-ab02-3345d6c2f236 [observed]

 Occultation Date + Time   : 2018-02-15 at 20:10:07 UT +/- 0.01 min  [1]
 Object Designation        : (189) Phthia
 Orbit Class               : MBA
 Star Designation          : GDR3 0598314443554350464
 Star Coordinates (ICRF)   : RA = 08 44 45.0173, DE = +10 04 53.672  [2]
 Star Magnitudes           : G = 5.61 mag, RP = 5.65 mag, BP = 5.57 mag
 Object Magnitude          : V = 12.87 mag
 Estimated Magnitude Drop  : 7.3 mag
 Estimated Max. Duration   : 3.6 sec
 Object Mean Diameter      : 38 km  (src: astorb)
 Speed of the shadow       : 10.6 km/s
 Elongation to Moon & Sun  : 162° (sunlit = 0%), Sun = 162°
 Cross-track uncertainty   : 1.7 mas = 1 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 1  (0:false, 1:true)

 Ephemeris Reference       : JPL#107

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

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