Previous: UDEKKER
Up: UES Slit-area
Next: UMODLENS
Previous Page: UDEKKER
Next Page: UMODLENS

USLITLEN

Sets the UES slit length, by moving the dekker.

Format: USLITLEN <parameter> <units>

Units: ARCSEC, MM, PIX

Defaults: Defaults to uninitialised on power--up

Examples : USLITLEN 5 ARCSEC, USLITLEN 20 MM

Comments: The slitlength can be specified in mm at the slit, arcsec on the sky, or projected pixels on the detector. In order to calculate the slitlength in pixels, the pixelsize must have been specified using the PIXSIZE command.
USLITLEN AUTO automatically determines appropriate slitlength according to echelle and central wavelength combination in use.


Mon Mar 14 16:50:31 GMT 1994