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

                 ASTERIODAL OCCULTATION - REPORT FORM

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

           	           EAON & IOTA-ES

               EUROPEAN ASTEROIDAL OCCULTATION NETWORK

    INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION

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

1.DATE: 2008/05/15
  STAR: UCAC2 26949243
  ASTEROID: (712) Boliviana

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 13.3 (WGS84)
	Longitude: E 15 14 08.2 (WGS84)
	Altitude:  585m         (WGS84)
	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:    00:34:49

	E:    00:41:04         
	
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-120N, CCIR, 1/2" Sony CCD-Sensor ICX419ALL, 768x576
	Mode of recording: It=80ms (12.5 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 comments)
	Temperature: 281 Kelvin (+08 deg Celsius)
	
8.ADDITIONAL COMMENTS:
        Video evaluation accomblished with VirtualDub1.7.8 and Limovie0928c
        No occultation detected (It=80ms)
        Path (width=149km, 1 sigma=0.21pw) had shifted several sigma intervals to the north

        Using a longer integration time the asteroid Boliviana was visible separated clearly
        about 15 minutes after the event time.

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

        Target star UCAC2 26949243, +11.2mag, 25deg Elevation
        Limit on video fields was UCAC2 26949568, +13.1mag

        3-D Position and timing
	Garmin GPS18 LVC
        Receiving 07 satellites
        Horizontal Dilution of Precision 1.1
        Geoidal separation 44.4m (Altitude 540.6MSL + 44.4 = 585.0m in WGS84 datum)

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