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2012-01-08 / 2UC 41679224 / (203) Pompeja

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Carles Schnabel O+ VID M400 ES GPS++ 19:48:41 19:52:52.36 19:53:02.79 19:56:11 0.06 0.06 10.43 103.3
2 show Jorge Juan O+ VID M406 ES GPS++ 03:08:08 19:52:52.00 19:53:03.28 03:17:05 0.10 0.04 11.28 111.7
3 show Joan Rovira O+ VID M200 ES GPS++ 19:49:57 19:52:49.49 19:52:59.61 19:56:30 0.24 0.24 10.12 100.2
4 show Michele Bigi O+ VID M200 IT GPS++ 19:50:00 19:51:46.95 19:51:59.13 19:53:00 0.65 0.65 12.18 120.6
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#136 : fe8ce662-0b05-4882-bf72-2eb4c7c27c68 [db: observed]

Using prediction fe8ce662-0b05-4882-bf72-2eb4c7c27c68 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 = 139 x 50 km
a',b' = 69.3, 24.8 km
X0,Y0 = 271.5, 27.1 km
Mean diameter = 83 km

From 4 chords (VID)








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] : fe8ce662-0b05-4882-bf72-2eb4c7c27c68 [observed]

 Occultation Date + Time   : 2012-01-08 at 19:48:12 UT +/- 0.02 min  [1]
 Object Designation        : (203) Pompeja
 Orbit Class               : MBA
 Star Designation          : GDR3 3443149563220043008
 Star Coordinates (ICRF)   : RA = 05 51 29.0554, DE = +28 09 58.217  [2]
 Star Magnitudes           : G = 13.8 mag, RP = 13.38 mag, BP = 14.05 mag
 Object Magnitude          : V = 12.73 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 11.8 sec
 Object Mean Diameter      : 116 km  (src: astorb)
 Speed of the shadow       : 9.9 km/s
 Elongation to Moon & Sun  : 16° (sunlit = 100%), Sun = 160°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 2.48 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#136

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

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