| 1. Observer | Keyword: OBSERVER (String)
Name of the observer. ? | Name: | Torsten Hansen |
Keyword: COUNTRY (String)
Country name of observer. ? | Country: | Germany |
Keyword: AFFILIAT (String)
Name of your local institute, observatory, association, club, ... ? | Affiliation: | |
Keyword: URL (String)
Relevant personal or institutional web site. ? | URL: | |
| 2. Location | Keyword: LOCATION (String)
A name for the observing site. ? | Location name: | Reichau |
Keyword: MPC_CODE (String)
The code of the observatory as registered with the Minor Planet Center, if applicable. ? | MPC-code: | |
Keyword: LONGITUD (Float)
The longitude of the observing site in decimal degrees. East is positive, West is negative. ? | Longitude: | 10.223 ° |
Keyword: LATITUDE (Float)
The latitude of the observing site in decimal degrees. North is positive, South is negative. ? | Latitude: | 48.099 ° |
Keyword: HEIGHT (Float)
The height of the observatory above mean sea level in meters. ? | Height: | 610 m |
| 3. Sky conditions | Keyword: SKYDESC (String)
General description of the condition of the sky (e.g. thin cirrus, mist, daylight, twilight, dust, high humidity). ? | Sky description: | |
Keyword: SEEING (String)
'0' is worst seeing, '10' is excellent seeing (ALPO/Pickering scale). ? | Seeing: | 7/10 |
Keyword: TRANSPAR (String)
'0' is worst transparency, '5' is perfect transparency. ? | Transparency: | 5/5 |
Keyword: VIS_LM (Float)
The naked-eye limiting magnitude (indicating the transparency of the sky). The value should only be approximate (e.g. 5.5 or 6.0). ? | Limiting magnitude: | |
Keyword: WIND (String)
Description of the wind (e.g. 'no wind', 'telescope unstable due to heavy wind', ... ) ? | Wind: | |
Keyword: CLOUDS (String)
The cloud cover, following the standard convention of giving the percentage of cloud cover in eights. '0/8' means clear sky, '4/8' means 50% clouds. ? | Cloud cover: | 0/8 |
| 4. Telescope | Keyword: TELESCOP (String)
Short description of the telescope. ? | Telescope name: | GSO-Newton |
Keyword: APER_DIA (Float)
Diameter of aperture in mm. ? | Aperture diameter: | 200 mm |
Keyword: F_RATIO (String)
The focal ratio of the telescope, e.g. f/10. ? | Focal ratio: | f/6 |
Keyword: OBSTRUC (Float)
Percentage of obstructed area (not applicable for refractors). ? | Obstructed area: | 25 % |
Keyword: EFF_FLEN (Float)
The effective focal length of the system including all Barlow lenses, eyepiece projections, etc. ? | Eff. focal length: | 4600 mm |
Keyword: BARLOW (String)
Make, type, and magnification of a Barlow lens, if used. Else use 'N/A'. ? | Barlow: | Baader FFC |
Keyword: EYEPIECE (String)
If eyepiece projection was used, specify the make, type, and focal length of eyepiece. Else use 'N/A'. ? | Eyepiece: | |
| 5. Camera and filter | Keyword: CAMERA (String)
Make and name of the camera. If possible, also provide the make and type of the actual CCD chip. ? | Camera name: | DMK21AU04.AS |
Keyword: CAMDEPTH (Integer)
The dynamic range of the camera expressed in bits per pixel. ? | Bit depth: | 8 bit |
Keyword: CAMGAIN (String)
Description of the gain setting of the camera. If the range of the gain is unspecified, then supply a number between 0 (lowest available gain) and 1 (higest available gain). Free text is also allowed (e.g. 'setting C (high)', '20 electrons/DN', ...) ? | Gain: | 980 |
Keyword: FILTER (String)
If your filter is not in the list, give enough information such that a filter transmission curve can be found. Typically this means: Give the name of the manufacturer, a color band (U, V, B, R…), any potential other names given to filters by the manufacturer. You may also specify a stack of filters. ? | Filter: | Schuler UV |
Keyword: WVRANGE (String)
Principal wavelength transmitted by the filter. One of 'ultraviolet', 'visible', 'infrared' or 'mixed'. ? | Wavelength range: | ultraviolet |
| 6. Exposure | Keyword: TOTNOFRM (Integer)
Total number of frames recorded. ? | Frames recorded: | 1800 |
Keyword: EXPOSURE (Float)
Exposure time of camera in seconds (per frame). ? | Exposure time: | 0.026 s |
Keyword: DATE_OBS (Date)
Start time of the exposure in Universal Time (UT = GMT). Format should be 'YYYY-MM-DDThh:mm:ss' (ISO), for example '2001-01-01T12:34:56'. ? | Start time (first frame): | 2009-01-10T17:02:00 |
Keyword: DATE_END (Date)
End time of the exposure in Universal Time (UT = GMT). Format should be 'YYYY-MM-DDThh:mm:ss' (ISO), for example '2001-01-01T12:34:56'. ? | End time (last frame): | 2009-01-10T17:04:00 |
Keyword: NORTHDIR (String)
The approximate direction of north in the image. If necessary, specify an angle in degrees counted from the top of the image in clockwise direction ? | North direction: | TOP |
Keyword: PRECDIR (String)
The approximate 'preceeding' direction, i.e. the direction into which Venus is moving due to the earth rotation. This will allow to judge whether the image is mirror-image or not. If necessary, specify an angle in degrees counted from the top of the image in clockwise direction ? | Preceeding direction: | RIGHT |
Keyword: PIXELSCL (Float)
The pixel scale in arcsec per pixel. ? | Pixel scale: | |
| 7. Image processing | Keyword: PROC_SW (String)
Name and version of the software used for image processing. ? | Software: | giotto 2.12, fitswork 3.81 |
Keyword: N_FRAMES (Integer)
Number of frames used to obtain the image (only applicable of several frames were stacked – use '1' if no stacking was performed). ? | Frames used: | 180 |
Keyword: DARKFLAG (String)
If dark image was subtracted, set to YES, if not, set to NO. ? | Dark field: | NO |
Keyword: FLATFLAG (String)
If flat field was used, set to YES, if not set to NO. ? | Flat field: | NO |
Keyword: HISTORY (String)
Short description of important image (post-)processing steps that were applied. ? | History: | Sharpening with giotto; no further processing. |
| 8. Others | Keyword: CREDITS (String)
A (short) text line which should be used when somebody wants to give credit to the image. Example 'D. Koschny (B12), 2007.' ? | Credit line: | Torsten Hansen, 2009 |
| ? | Comments: | Image is No. 3 of 3 submitted UV-images of this date.
For an animation of the 3 submitted images of this series, please refer to the following link: http://www.aau.telebus.de/Ver_7/user/Torsten_Hansen/Venus20090110/Venus20090110aniw.gif |
| 9. Image info | Keyword: BITPIX (Integer)
The number of bits per pixel. This keyword is required by the FITS-standard. ? | Bits per pixel: | 16 |
Keyword: NAXIS (Integer)
Number of data axes (2 in the case of a monochrome images). This keyword is required by the FITS-standard. ? | Axes: | 2 |
Keyword: NAXIS1 (Integer)
The number of pixels of the image in the X direction. This keyword is required by the FITS-standard. ? | X-size: | 150 px |
Keyword: NAXIS2 (Integer)
The number of pixels of the image in the Y direction. This keyword is required by the FITS-standard. ? | Y-size: | 150 px |
Keyword: STATUS (String)
Status in the VAA. This keyword is automatically set by the VAA. ? | Status: | submitted |
Keyword: RECEIVED (Date)
Date the image was received. This keyword is automatically set by the VAA. ? | Uploaded: | 2009-02-14T00:58:44 |
Keyword: UPDATED (Date)
Last update of the data. This keyword is automatically set by the VAA. ? | Last update: | 2009-02-23T12:37:28 |
