+--------------------------------+ +--------------------------------+

                 ASTERIODAL OCCULTATION - REPORT FORM

+--------------------------------+ +--------------------------------+

           	           EAON & IOTA-ES

               EUROPEAN ASTEROIDAL OCCULTATION NETWORK

    INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION

+--------------------------------+ +--------------------------------+

1.DATE: 2006/09/07
  STAR: TYC 1871-00281-1
  ASTEROID: (494) Virtus

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 08.2 (WGS84)
	Altitude: 547m (MSL)
	Single/Multiple: Single

+--------------------------------------------------------------------+

4.TIMING OF EVENTS:
	Occultation recorded: NEGATIVE
	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:   02:53:04

	E:   02:57:06   
	
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=40ms (25 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: No (It=40 ms) see additional comments
	Temperature: 281 Kelvin (+08 deg Celsius)
	
8.ADDITIONAL COMMENTS:
	Video evaluation accomblished with VirtualDub1.6.16 and Limovie0.9.24
        No occultation detected

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

        Target star TYC 1871-00281-1, +10.8mag, 51deg Elevation
        Limit on Video "live"-frames (integration time = 40 ms)
        TYC 1871-00277 +11.9 mag

        Virtus (494) +15.0 mag was clear visible separated from target
        until 02:45 UT with It=2.56s (64x frames)

        3-D Position and timing
	Garmin GPS18 LVC
        Receiving 07 satellites
        Horizontal Dilution of Precision 1.2
        Geoidal separation 44.4m

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