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2019-05-13 / 4UC 402-056901 / (308) Polyxo

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show O. Schreurs et al O+ VID M406 BE GPS++ 01:35:30 01:36:45.13 01:36:50.57 01:38:01 0.08 0.08 5.44 58.2
2 show Chad Ellington O+ VID M250 DE GPS++ 01:35:47 01:36:42.9 01:36:53.1 01:37:20 0.31 0.31 10.20 109.1
3 show Jan-Maarten Winkel O+ VID M310 NL GPS++ 01:35:41 01:36:46.15 01:36:57.07 01:37:41 0.17 0.17 10.92 116.8
4 show Christian Weber O+ VID M150 DE GPS++ 01:33:25 01:36:23.74 01:36:25.50 01:37:43 0.25 0.25 1.76 18.8
5 show Esdert Edens O+ VID M235 NL GPS++ 01:33:54 01:36:56.25 01:37:07.45 01:39:52 0.16 0.16 11.20 119.8
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

5 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#115 : 5468a8d2-09a9-434c-9807-12fe00eb214f [db: observed]

Using prediction 5468a8d2-09a9-434c-9807-12fe00eb214f for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result:
Size = 167 x 111 km
a',b' = 83.7, 55.4 km
X0,Y0 = -2272.8, 22.9 km
Mean diameter = 136 km

From 5 chords (VID)








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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 5468a8d2-09a9-434c-9807-12fe00eb214f [observed]

 Occultation Date + Time   : 2019-05-13 at 01:37:39 UT +/- 0.02 min  [1]
 Object Designation        : (308) Polyxo
 Orbit Class               : MBA
 Star Designation          : GDR3 6328477016069645824
 Star Coordinates (ICRF)   : RA = 14 27 08.7017, DE = -09 47 03.199  [2]
 Star Magnitudes           : G = 12.88 mag, RP = 12.29 mag, BP = 13.3 mag
 Object Magnitude          : V = 11.99 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 13.2 sec
 Object Mean Diameter      : 141 km  (src: astorb)
 Speed of the shadow       : 10.7 km/s
 Elongation to Moon & Sun  : 62° (sunlit = 62%), Sun = 165°
 Cross-track uncertainty   : 2.3 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#115

 Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
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