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: http://www.apo.nmsu.edu/Instruments/offsets.html
Дата изменения: Thu Sep 6 11:25:36 2001 Дата индексирования: Sun Apr 10 01:52:43 2016 Кодировка: Поисковые слова: galactic center |
IRAF View
This is the orientation of the image as viewed in an image display via IRAF (e.g. ximtool, saoimage). Note: This is different from the orientation of the image as viewed on a Macintosh, via Remark. Scroll down the page for the Macintosh orientation.
A +X, +Y instrument offset will move a star in the direction indicated
by the arrows. Directions of East and North are given for 0 degrees
object rotation. Note: The offset direction depends upon which
interface the offset command was issued in!
INTERFACE: TCC MC REMARK
N N N
GrIm2 ----------- ----------- -----------
f/5 | ^ | | | | |
| |y | | x | | x |
E| <--* | E| *--> | E| *--> |
| x | | y| | | y| |
| | | V | | V |
----------- ----------- -----------
GrIm2 ----------- ----------- -----------
f/10, | | | ^ | | ^ |
f/20 | x | | y| | | y| |
E| <--* | E| *--> | E| *--> |
| |y | | x | | x |
| V | | | | |
----------- ----------- -----------
N N N
N N N
SPIcam ----------- ----------- -----------
| ^ | | | | |
| y| | | x | | x |
E| *--> | E| *--> | E| <--* |
| x | | y| | | |y |
| | | V | | V |
----------- ----------- -----------
DIS ----------- ----------- -----------
| | | ^ | | ^ |
| x | | |y | | y| |
E| *--> | E| *--> | E| *--> |
| y| | | x | | x |
| V | | | | |
----------- ----------- -----------
N N N
DIS N N N
slit cam ----------- ----------- -----------
| | | ^ | | ^ |
| x | | |y | | |y |
E| *--> | E| <--* | E| <--* |
| y| | | x | | x |
| V | | | | |
----------- ----------- -----------
Echelle ----------- ----------- -----------
slit cam | ^ | | | | |
| y| | | x | | x |
| *--> | | *--> | | <--* |
| x | | y| | | |y |
| | | V | | V |
----------- ----------- -----------
AOTF ----------- ----------- -----------
| | | ^ | | ^ |
| x | | y| | | |y |
| *--> | | *--> | | <--* |
| y| | | x | | x |
| V | | | | |
----------- ----------- -----------
MACINTOSH View
This is the orientation of the image as viewed on a Macintosh
(i.e. as displayed by Remark). Note: This is different from the
orientation of the image as viewed by IRAF. Scroll up the page for the
IRAF orientation.
A +X, +Y instrument offset will move a star in the direction indicated
by the arrows. Directions of East and North are given for 0 degrees
object rotation. Note: The offset direction depends upon which
interface the offset command was issued in!
INTERFACE: TCC MC REMARK
GrIm2 ----------- ----------- -----------
f/5 | | | ^ | | ^ |
| x | | y| | | y| |
E| <--* | E| *--> | E| *--> |
| |y | | | | x |
| V | | | | |
----------- ----------- -----------
N N N
N N N
GrIm2 ----------- ----------- -----------
f/10, | ^ | | | | |
f/20 | |y | | x | | x |
E| <--* | E| *--> | E| *--> |
| x | | y| | | y| |
| | | V | | V |
----------- ----------- -----------
N N N
DIS ----------- ----------- -----------
| ^ | | | | |
| |y | | x | | x |
E| *--> | E| *--> | E| *--> |
| | | |y | | y| |
| | | V | | V |
----------- ----------- -----------
Echelle ----------- ----------- -----------
slit cam | | | ^ | | ^ |
| x | | y| | | |y |
| *--> | | *--> | | <--* |
| y| | | x | | x |
| V | | | | |
----------- ----------- -----------
K. Gloria - June, 1999
updated R. McMillan - September, 2001