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                 EARTHMOON OCCULTATION - REPORT FORM

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           	           EAON & IOTA-ES

               EUROPEAN ASTEROIDAL OCCULTATION NETWORK

    INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION

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1.DATE: 2008/10/17
  STAR: SAO 76573
Catalogue details

 XZ 5642 = SAO 76573 = ZC 647 = chi Tauri
 RA =   4 22 34.9436   PM = 0.00151s
Dec =  25 37 45.531    PM = -0.0179"
 Mv = 5.38, Mb = 5.34, Mr = 5.40    Spectrum B9    Approx dia. .0002"

NSV 15957, 5.34 to 5.39Hp

Star is the primary of the following pair
Name    Cmpt   Yr1  Yr2: PA1   PA2  :   Sep1   Sep2  :  Mag1  Mag2
STF 528       1822 1998:  27.0  25.0:  19.700  19.600:  5.40  8.43

WDS Discoverer codes
STF  Struve, F.G.W.                      

2.OBSERVER:
  	Name: Gerhard Dangl
	Phone: ++43-(0)2842-53908
	Address: AUSTRIA, A-3830, Nonndorf 12
	E-mail: gerhard@dangl.at

3.OBSERVING STATION:
	Place:     Nonndorf, 3830, Austria
	Latitude:  N 48 47 13.6 (WGS84)
	Longitude: E 15 14 08.3 (WGS84)
	Altitude:  599m         (WGS84)
	Single/Multiple: Single

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4.TIMING OF EVENTS:
	Event recorded: Reappearance
	Type of event:
	"S"tart observation; "I"nterrupt-"s"tart; "D"isappearance;
	"B"link; "F"lash; "E"nd observation; "I"nterrupt-"e"nd;
	"R"eappearance; "O"ther (specify)
	
	Personal Equation Substracted: No
	Event Time (UT)		P.E. Accuracy + Comments
	code: HH:MM:SS.sss      S.ss  S.ss
	
	R:    23:50:08.324            0.01      Component A, dark side
        R:    23:50:57.564            0.01      Component B, dark side
   
	
5.TELESCOPE:
	Type: Newton
	Focal length: 1200mm
 	Aperture: 254 mm
	Magnification: video/primary focus/FOV 15.8'x13.7' (640x576, 1.48"x1.43" per pixel)
	Mount: Equatorial
	Motor drive: Yes

6.TIMING & RECORDING:
	Timekeeping: GPS 1PPS Garmin 18 LVC + KIWI-OSD
        Sensor/Camera: WAT-902H2 Ultimate, CCIR, 1/2" Sony CCD-Sensor ICX429ALL, 768x576
	Mode of recording: It=20ms (50 Img/s), Video CCIR, AVI, YUY2, Huffyuv,
	Device of recording: Xpert V-Stream Videograbber USB2.0, Notebook Harddisk
        Time insertion: KIWI-OSD

7.OBSERVING CONDITIONS:
	Atmospheric transparency: good
	Wind: 0 - 0.5m/s
	Star image stability: fair
	Temperature: 273 Kelvin (+00 deg Celsius)
	
8.ADDITIONAL COMMENTS:
        Moon 86.3% illuminated, waning, Alt=59deg, AZ=129deg.

        Only Clear glass filter (Astronomik) for CCD protection was used.

        Video evaluation accomblished with VirtualDub1.7.8 and Limovie0.9.28c

        3-D Position and timing
	Garmin GPS18 LVC
        Receiving 08 satellites
        Horizontal Dilution of Precision 1.2
        Geoidal separation 44.4m (Altitude 554.2MSL + 44.4 = 598.6m in WGS84 datum)

        Gerhard Dangl
	gerhard@dangl.at
	www.dangl.at/
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