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2000-11-07 / HIP 103334 / (476) Hedwig

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Peter Enskonatus O+ VIS M200 DE RAD 19:46:00 19:48:35.4 19:48:38.2 19:49:00 0.1 0.1 2.80 53.2
2 show Sven Andersson O+ PHM M500 DE RAD 19:48:33.5 19:48:38.0 0.05 0.05 4.50 85.5
3 show Martin Dentel O+ VIS M250 DE RAD 19:47:00 19:48:33.3 19:48:38.5 19:49:00 0.2 0.1 5.20 98.8
4 show Nikolai Wuensche O+ VIS M150 DE RAD 19:23:30 19:48:33.1 19:48:38.8 20:36:00 0.1 0.1 5.70 108.3
5 show Dieter Ewald O+ VIS L110 DE RAD 19:42:00 19:48:32.5 19:48:38.2 19:53:00 0.4 0.2 5.70 108.3
6 show Joerg Moellmann O+ VIS M360 DE RAD 19:46:00 19:48:33.3 19:48:39.1 19:50:00 0.2 0.1 5.80 110.2
7 show Juan Grados O- VIS M200 ES 19:38:00 20:07:00
8 show Jose-Alberto Berdejo O- VIS L100 ES 19:35:01 19:54:57
9 show Nick Quinn O- VIS M90 UK 19:46:00 19:50:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

9 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#128 : ca5a1ff4-30aa-49ce-b252-6f069f1f37f9 [db: observed]

Using prediction ca5a1ff4-30aa-49ce-b252-6f069f1f37f9 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 = 130 x 65 km
a',b' = 64.8, 32.4 km
X0,Y0 = 1086.9, -9.2 km
Mean diameter = 92 km

From 6 chords (PHM,VIS)








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).
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Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : ca5a1ff4-30aa-49ce-b252-6f069f1f37f9 [observed]

 Occultation Date + Time   : 2000-11-07 at 19:45:13 UT +/- 0.02 min  [1]
 Object Designation        : (476) Hedwig
 Orbit Class               : MBA
 Star Designation          : GDR3 6909698271470317312
 Star Coordinates (ICRF)   : RA = 20 56 07.0594, DE = -07 42 58.631  [2]
 Star Magnitudes           : G = 8.0 mag, RP = 7.37 mag, BP = 8.47 mag
 Object Magnitude          : V = 13.68 mag
 Estimated Magnitude Drop  : 5.7 mag
 Estimated Max. Duration   : 6.2 sec
 Object Mean Diameter      : 117 km  (src: astorb)
 Speed of the shadow       : 19.0 km/s
 Elongation to Moon & Sun  : 43° (sunlit = 82%), Sun = 89°
 Cross-track uncertainty   : 7.0 mas = 11 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 1  (0:false, 1:true)

 Ephemeris Reference       : JPL#128

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

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