Year  M  D  h  m  s  Event Type     Ph   Dur dMag  %Ill   Sep  PA  MinD      h  m  s   h  m  s   h  m  s   h  m  s   h  m  s   h  m  s   h  m  s
2009  8 14 21 59 24  (I) occ (II)    P  1064  0.0  99.5  78.7  69  1.111 |            21 50 32            21 59 24            22  8 16           

Data and diagrams created with Occult 4 from Dave Herald

Jupiter system - 2009/08/14

Starmap created with Guide 8 from Bill J Gray.

The setup for occultation recording

CCIR (PAL) full size video image 768x576

Limovie settings

MUTUAL OCCULTATION - REPORT

MUTUAL OCCULTATION - REPORT
EAON & IOTA-ES
EUROPEAN ASTEROIDAL OCCULTATION NETWORK
INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION

1.DATE: 2009/08/14
Event: Jupiter system 1O2; Io (I) occults Europa (II)

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 13.5 (WGS84)
Longitude: E 15 14 08.2 (WGS84)
Altitude:  602m         (WGS84)
Single/Multiple: Single

4.TIMING OF EVENTS:
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)

Recording time HH:MM:SS UTC
S:    21:45:39
E:    22:12:22       

5.TELESCOPE:
Type: Newton
Focal length: 1200mm + Powermate 2.5x = 3000mm effective focal length
Aperture: 254 mm
Magnification: video/primary focus/FOV 7.3'x5.5' (768x576, 0.57"x0.57" per pixel)
Mount: Equatorial
Motor drive: Yes

6.TIMING & RECORDING:
Timekeeping: GPS 1PPS Garmin 18x LVC + KIWI-OSD
Sensor/Camera: WAT-120N, CCIR, 1/2" Sony CCD-Sensor ICX419ALL, GAMMA=OFF (linear)
Mode of recording: It=40ms (25 Img/s), Video CCIR, AVI, YUY2, Huffyuv,
Device of recording: TIS DFG/USB2-lt Videograbber USB2.0, Notebook Harddisk
Time insertion: KIWI-OSD 

7.OBSERVING CONDITIONS:
Atmospheric transparency: fair
Wind: No
Object image stability: fair
Temperature: 284 Kelvin (+11 deg Celsius)

8.ADDITIONAL COMMENTS:
Object height above local horizon at recording start: 24 deg
Object height above local horizon at recording end:   25 deg

From video stream with 25 Img/s every second one image was captured.

IR pass filter with transmission edge of 807nm was used.
        
Video evaluation accomplished with VirtualDub1.8.6, AviSynth2.5,
Limovie0.9.29b, LimovieAverage 1.2.0.0 and Excel

3-D Position and timing
Garmin GPS18x LVC
Receiving 10 satellites
Horizontal Dilution of Precision 0.9
Geoidal separation 44.5m (Altitude 557.4MSL + 44.5 = 601.9m in WGS84 datum)

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

The evaluation of the measurement data

The evaluation of the measurement data from recorded video was done with the software packages below:

VirtualDub
Limovie
Avisynth
LimovieAverage
Help text, using LimovieAverage with mutual events

Measurement data and results in csv and Excel data format

CSV file, binning 1 second (96 KB)
Excel file, binning 1 second (362 KB)

CSV file, binning 2 seconds (48 KB)
Excel file, binning 2 seconds (253 KB)

CSV file, binning 4 seconds (24 KB)
Excel file, binning 4 seconds (199 KB)

The diagrams in an overview

Diagram binning 1 second - click for full size

Diagram binning 2 seconds - click for full size

Diagram binning 4 seconds - click for full size

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