List of Figures
The MOS/SIS double spectrograph; section view
SIS Image Quality
Flexures for motions in
and
Possible ways for fast and slow guiding
The guider window
The guide probe domain
SIS mask slide (front view)
Grism efficiencies
Restriction in slit selection. Selecting objects/slits in area A will provide spectra with the full wavelength range requested; selection in areas B will imply a loss of wavelength coverage, either in the blue or the red part of spectra.
The SIS session menubar
The SIS control form
The Status Window
The CAF form
The IQE form
The OFFSET form
The SIS-Ofst form
The RASTER form
The EXPOSE form
The LAMPS control form
The CAL-SEQ form
The SAOIMAGE window. The object near center is Markarian 876. Note the large occultation by the guide probe in this test conducted with a guide star well within the science field.
The GRAPH form
The FILES form
The
guide star
form
The LAMA menubar
The Lama setup form
The Grism ENG form
The Lama mask form
Selection of objects and slit positioning in SAOIMAGE
The IMAGE form
SIS images taken without the active guiding loop (left,
) and with the guiding loop on (right,
; the fast guiding frequency was set at 50 Hz).
(top) Sky spectrum with R300; (bottom) residual of the sky correction (task background in IRAF, third order Chebyshev polynome), expressed as a percentage of the sky intensity. The r.m.s of the residuals are 0.2%in the interval 6000 - 9000 Å, higher at the edges because of lower grism efficiency.