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                 ASTERIODAL 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: 2006/10/08
  STAR: TYC 1722-00810-1
  ASTEROID: (409) Aspasia

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

3.OBSERVING STATION:
	Nearest city: Waidhofen/Thaya
	Latitude: N 48 47 13.4 (WGS84)
	Longitude: E 15 14 08.3 (WGS84)
	Altitude: 552m (MSL)
	Single/Multiple: Single

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4.TIMING OF EVENTS:
	Occultation recorded: POSITIVE
	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.ss      S.ss  S.ss
	
	S:    21:20:50

        D:    21:24:06.096            0.01    (D:time +/-10ms)
        R:    21:24:20.936            0.01    (R:time +/-10ms)   
                                              Duration 14.84s (+/-20ms)
	E:    21:27:41   
	
5.TELESCOPE:
	Type: Newton
	Focal length: 1200mm
 	Aperture: 254 mm
	Magnification: video/primary focus/recorded field 1112" x 830"
	Mount: Equatorial
	Motor drive: Yes

6.TIMING & RECORDING:
	Timekeeping: GPS 1PPS Garmin18 LVC + KIWI-OSD
        Sensor/Camera: WAT-120N, CCIR, 1/2" Sony CCD-Sensor ICX419ALL
	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: No 
	Star image stability: good
	Minor planet visible: Yes (see comment)
	Temperature: 275 Kelvin (+02 deg Celsius)
	
8.ADDITIONAL COMMENTS:
        Approach of Aspasia to target star was clearly visible separated
        until around 21:17 UTC

        Internal 40ms delay of camera WAT-120N subtractet from video times
        Predicted Max Duration was 13.4s (14.84s recorded)
        
	Video evaluation accomblished with VirtualDub1.6.16 and Limovie0.9.24

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

        Target star TYC 1722-00810-1, +10.7mag, 56deg Elevation
        Limit on video fields TYC 1722-00557, +10.9mag


        3-D Position and timing
	Garmin GPS18 LVC
        Receiving 09 satellites
        Horizontal Dilution of Precision 1.0
        Geoidal separation 44.4m

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