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2019-09-12 / 4UC 409-079265 / (266) Aline

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Marian Urbanik O+ VID M252 SK GPS++ 21:07:13 21:07:16.13 21:07:29.76 21:07:39 0.09 0.09 13.63 98.1
2 show P. Svozil et al O+ CCD M300 CZ NTP 21:06:43 21:07:10.51 21:07:23.85 21:07:33 0.05 0.05 13.34 96.0
3 show Petr Zeleny O+ CCD M254 CZ NTP 21:06:00 21:07:08.95 21:07:22.44 21:09:02 0.10 0.10 13.49 97.1
4 show Radim Neuvirt O+ VID M355 CZ GPS++ 21:05:01 21:06:31.69 21:06:32.09 21:08:14 0.12 0.12 0.40 2.9
5 show Milan Antos O+ CCD M254 CZ NTP 21:05:39 21:06:35.47 21:06:47.94 21:08:39 0.03 0.03 12.47 89.8
6 show Zdenek Moravec O+ VID M305 CZ GPS++ 21:05:08 21:06:29.27 21:06:36.73 21:08:14 0.04 0.04 7.46 53.7
7 show Jiri Polak O- VID M303 CZ 21:05:07 21:09:07
8 show Karel Halir O- VID M507 CZ 21:04:49 21:08:49
9 show Jiri Kubanek O- VID M203 CZ 21:04:46 21:08:52
10 show Jan Manek O- CCD M200 CZ 21:05:28 21:08:56
11 show Vaclav Priban O- VID M300 CZ 21:05:11 21:09:15
12 show Marek Zawilski O- CCD M203 PL 21:06:00 21:08:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

12 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#129 : 5caec0d2-0cb1-41cd-aeda-cb66b6ac426a [db: observed]
JPL#129 : f2d02204-a1e9-4acf-8f70-47d7f965d85e [db: observed]

Using prediction 5caec0d2-0cb1-41cd-aeda-cb66b6ac426a 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 = 100 x 82 km
a',b' = 50.1, 40.8 km
X0,Y0 = -2660.6, 8.8 km
Mean diameter = 90 km

From 6 chords (VID,CCD)








You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : 5caec0d2-0cb1-41cd-aeda-cb66b6ac426a [observed]

 Occultation Date + Time   : 2019-09-12 at 21:06:15 UT +/- 0.02 min  [1]
 Object Designation        : (266) Aline
 Orbit Class               : MBA
 Star Designation          : GDR3 4156511431711265280
 Star Coordinates (ICRF)   : RA = 18 36 06.7306, DE = -08 14 18.581  [2]
 Star Magnitudes           : G = 11.62 mag, RP = 10.95 mag, BP = 12.09 mag
 Object Magnitude          : V = 13.68 mag
 Estimated Magnitude Drop  : 2.2 mag
 Estimated Max. Duration   : 15.1 sec
 Object Mean Diameter      : 109 km  (src: astorb)
 Speed of the shadow       : 7.2 km/s
 Elongation to Moon & Sun  : 59° (sunlit = 98%), Sun = 109°
 Cross-track uncertainty   : 1.3 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.82 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#129

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

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