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: http://www.stsci.edu/~mperrin/kermit/keywords.html
Дата изменения: Thu Mar 25 12:43:46 2004 Дата индексирования: Sat Mar 1 06:58:03 2014 Кодировка: Поисковые слова: п п п п п п п п п п п п п п п п п п п п п п п п п п |
| SIMPLE |
FITS required; file conforms to
FITS standard. |
| BITPIX |
FITS requried; 32 bits per pixel. |
| NAXIS |
FITS required; number of axes.
Will be 2 or 3 for Kermit. |
| NAXIS1 |
Size of first (x) axis. |
| NAXIS2 |
Size of second (y) axis. Will
always equal NAXIS1 for Kermit. |
| NAXIS3 |
(optional) Size of third (z)
axis. Usually not present (implicitly 1) but will exist for CDS no
subtraction or fast subarray modes. |
| EXTEND |
Fits required; file may contain
extensions. |
| COMMENT |
Observer's comment about object. |
| ORIGIN |
Who/where did this file
originate? |
| TELESCOP |
Which telescope took this data? |
| CREATOR |
Which software created this file? |
| DATE-OBS |
(Approximate) start of
observation in UTC. See note. |
| FILENAME |
The original filename this data
was saved as. |
| EXPTIME |
Exposure time. See this discussion. |
| COADDTIM |
Time per single coadd. See this discussion. |
| NCOADDS |
Number of exposures coadded in
hardware. |
| NREADS |
Number of Fowler Sample reads
per exposure. |
| NRESETS |
Number of times the array was
reset between subsequent exposures or coadds. |
| NFRAMES |
Number of frames read out in fast subarray mode. |
| READMODE |
Read
mode flag: 0 for single read, 1 for CDS, and 3 for CDS no
subtraction. |
| READMD_S |
Read
mode string; the same as READMODE but formatted as a descriptive
string rather than just an integer. |
| BIASFILE |
Which biasfile, if any, was
automatically subtracted during readout? |
| TIM_APP |
DSP Timing board application
number |
| TIM_PXMD |
DSP Timing board pixel mode. 0
is fast clocking, 1 is slow clocking, and 2 is slow clocking with the
reset line down. |
| TIM_PXTM |
DSP Timing board readout time
per pixel in microseconds. See this discussion. |
| TIM_RTIM |
DSP Timing board readout time
for the current subarray - the product of TIM_PXTM*NAXIS1*NAXIS2. |
| TIM_ITIM |
DSP Timing board integration
time. |
| SUB_COAD |
Coadder used for current
subarray. See this discussion. |
| SUB_OFFS |
Offset used for current subarray. See this discussion. |
| SUB_X |
Leftmost pixel of current subarray. See this discussion. |
| SUB_Y |
Lowest pixel of current subarray. See this discussion. |
| CCDSEC |
Subarray region coordinates. See this discussion. |
| AOFFST[00-73] |
Analog offsets applied to each
ADC channel. These numbers are the input values to the DACs; To convert
to volts use V = A/409.6 - 5 |
| OBJECT |
What the observer thinks we're
looking at. |
| PROGRAM |
Name of the observation campaign
or task. |
| FILTER |
Name of current filter position |
| PUPILMSK |
Name of current pupil mask |
| M2SLIDE |
Name of current M2 mirror. |
| FOCUS |
Focus
position, in motor counts. |
| EXP_MODE |
Exposure mode string. |
| MOTORS |
Motor
positions, in motor counts. The positions are listed in order as
(Filter, Pupil, M2, Focus). |
| IMGFMT |
Image format. |
| FSM_LOOP |
Coronagraph FSM Loop status at start of exposure; Open, Closed, or
Unknown. |
| HISTORY |
If the FSM loop status changes
during the exposure, the change and time are recorded here. |
| HANGLE |
Target's Hour Angle as computed by the coronagraph computer. |
| AIRMASS |
Target's Airmass as computed by the coronagraph computer. |
| PARANGLE |
Target's Parallactic Angle as computed by the coronagraph computer. |
| ALTITUDE |
Target's Altitude as computed by the coronagraph computer. |
| AZIMUTH |
Target's Azimuth as computed by the coronagraph computer. |