Please use the names as listed below as arguments for the ALFOSC
Sequencer scripts that require slit/grism specifiers.  <br> The arcsec
sign, ", does not have to be included in the name when using the name
as an argument for a sequencer script.

<p> 



Filter IDs can be found <a href=/instruments/filters/> here.</a>
<p>

<table>
<tr><th colspan=2 align=left>Special FASU items </th></tr> 
<tr><th align=left> ID &nbsp; &nbsp; &nbsp; &nbsp; </th><th align=left> Name</th><th align=left>Comment</th></tr> 
<tr><td>   301  </td><td>   ING065      </td><td>    filter  </td></tr>
<tr><td>   302  </td><td>   ING066      </td><td>    filter  </td></tr>
<tr><td>   615  </td><td>   Beta light  </td><td>     other   </td></tr>
<tr><td>   616  </td><td>   Caliblens   </td><td>     other   </td></tr>
<tr><td>   664  </td><td>   Diffuser#1   </td><td>    other   </td></tr>
<tr><td>   665  </td><td>   Diffuser#2   </td><td>    other   </td></tr>
</table>

<p>

<table>
<tr><th colspan=2 align=left>GRISMS </th></tr> 
<tr><th align=left> ID &nbsp; &nbsp; &nbsp; &nbsp; </th><th align=left> Name</th><th align=left>Comment</th></tr> 
<tr><td>401  </td><td>    Grism_#3    </td><td>  </td></tr>
<tr><td>402  </td><td>    Grism_#4    </td><td>  </td></tr>
<tr><td>403  </td><td>    Grism_#5    </td><td>  </td></tr>
<tr><td>404  </td><td>    Grism_#6    </td><td>  </td></tr>
<tr><td>405  </td><td>    Grism_#7    </td><td>  </td></tr>
<tr><td>406  </td><td>    Grism_#8    </td><td>  </td></tr>
<tr><td>407  </td><td>    Grism_#9    </td><td>  </td></tr>
<tr><td>408  </td><td>    Grism_#10   </td><td>  </td></tr>
<tr><td>409  </td><td>    Grism_#11   </td><td>  </td></tr>
<tr><td>410  </td><td>    Grism_#12   </td><td>  </td></tr>
<tr><td>411  </td><td>    Grism_#13   </td><td>  </td></tr>
<tr><td>412  </td><td>    Grism_#14   </td><td>  </td></tr>
<tr><td>413  </td><td>    Grism_#15   </td><td>  </td></tr>
<tr><td>414  </td><td>    Grism_#16   </td><td>  </td></tr>
<tr><td>415  </td><td>    Grism_#17   </td><td>  </td></tr>
<tr><td>601  </td><td>    Focus_Pyr   </td><td>  </td></tr>
<tr><td>602  </td><td>    Hartmann    </td><td> Up/Left    </td></tr>
<tr><td>603  </td><td>    Hartmann    </td><td> Down/Right </td></tr>
<tr><td>606  </td><td>    WFSMaskHigh </td><td>  </td></tr>
<tr><td>607  </td><td>    WFSMaskLow  </td><td>  </td></tr>
<tr><td>614  </td><td>    WeDoWo      </td><td>  </td></tr>
<tr><td>1004 </td><td>    Open_(Lyot) </td><td>  </td></tr>
</table>
<p>

<table>
<tr><th colspan=2>APERTURE-WHEEL ITEMS </th></tr>
<tr><th align=left> ID </th><th align=left> Name</th><th align=left>Comment</th></tr>
<tr><td>501   </td><td>   Ech_0.7"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>502   </td><td>   Ech_0.8"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>503   </td><td>   Ech_1.0"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>504   </td><td>   Ech_1.2"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>505   </td><td>   Ech_1.6"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>506   </td><td>   Ech_1.8"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>507   </td><td>   Ech_2.2"    </td><td> Echelle slit Vertical </td></tr>
<tr><td>508   </td><td>   Pol_1.0"    </td><td> Specpol Calcite with 1.0" slitlet </td></tr>
<tr><td>509   </td><td>   Pol_1.4"    </td><td> Specpol Calcite with 1.4" slitlet </td></tr>
<tr><td>510   </td><td>   Pol_1.8"    </td><td> Specpol Calcite with 1.8" slitlet </td></tr>
<tr><td>511   </td><td>   Slit_0.4"   </td><td> Long slit Horizontal </td></tr>
<tr><td>512   </td><td>   Slit_0.5"   </td><td> Long slit Horizontal </td></tr>
<tr><td>513   </td><td>   Slit_0.75"  </td><td> Long slit Horizontal </td></tr>
<tr><td>514   </td><td>   Slit_1.0"   </td><td> Long slit Horizontal </td></tr>
<tr><td>515   </td><td>   Slit_1.2"   </td><td> Long slit Horizontal (Decommissioned!)</td></tr>
<tr><td>516   </td><td>   Slit_1.3"   </td><td> Long slit Horizontal </td></tr>
<tr><td>517   </td><td>   Slit_1.8"   </td><td> Long slit Horizontal </td></tr>
<tr><td>518   </td><td>   Slit_2.5"   </td><td> Long slit Horizontal </td></tr>
<tr><td>519   </td><td>   Slit_5.0"   </td><td> Long slit Horizontal (Decommissioned!)</td></tr>
<tr><td>520   </td><td>   Slit_10.0"  </td><td> Long slit Horizontal </td></tr>
<tr><td>521   </td><td>   Vert_0.5"   </td><td> Long slit Vertical  </td></tr>
<tr><td>522   </td><td>   Vert_0.75"  </td><td> Long slit Vertical  </td></tr>
<tr><td>523   </td><td>   Vert_0.9"   </td><td> Long slit Vertical  </td></tr>
<tr><td>524   </td><td>   Vert_1.3"   </td><td> Long slit Vertical  </td></tr>
<tr><td>525   </td><td>   Vert_1.8"   </td><td> Long slit Vertical  </td></tr>
<tr><td>526   </td><td>   Vert_10.0"  </td><td> Long slit Vertical  </td></tr>
<tr><td>527   </td><td>   VertOff_0.5 </td><td> Long slit Vertical offset  </td></tr>
<tr><td>529   </td><td>   VertOff_0.8 </td><td> Long slit Vertical offset  </td></tr>
<tr><td>531   </td><td>   VertOff_1.0 </td><td> Long slit Vertical offset  </td></tr>
<tr><td>533   </td><td>   VertOff_1.3 </td><td> Long slit Vertical offset  </td></tr>
<tr><td>535   </td><td>   VertOff_1.9 </td><td> Long slit Vertical offset  </td></tr>
<tr><td>537   </td><td>   VertOff_8.8 </td><td> Long slit Vertical offset  </td></tr>
<tr><td>604   </td><td>   Calcite     </td><td> Imaging Calcite </td></tr>
<tr><td>605   </td><td>   Calcite     </td><td> Imaging Calcite </td></tr>
<tr><td>608   </td><td>   WFS_Lamp    </td><td>  </td></tr>
<tr><td>609   </td><td>   Pinhole     </td><td>  </td></tr>
<tr><td>610   </td><td>   Pinh_small  </td><td>  </td></tr>
<tr><td>612   </td><td>   Cor_1pos    </td><td> Coronographic mask with 1 size hole </td></tr>
<tr><td>613   </td><td>   Cor_4pos    </td><td> Coronographic mask with 4 different size holes </td></tr>
<tr><td>657   </td><td>   MOS_mask_1  </td><td> Place holder for MOS masks </td></tr>
<tr><td>658   </td><td>   MOS_mask_2  </td><td> Place holder for MOS masks </td></tr>
<tr><td>659   </td><td>   MOS_mask_3  </td><td> Place holder for MOS masks </td></tr>
<tr><td>660   </td><td>   MOS_mask_4  </td><td> Place holder for MOS masks </td></tr>
<tr><td>1003  </td><td>   Open        </td><td>  </td></tr>
</table>

<p>		      
		      
<h2> Old names </h2>

The optical-element names provided below are valid for the old system.<br>
<b>These names should not be used as of Nov 2011.</b><p>

Note that names containing spaces should be double-quoted.<P>


GRISMS  <br>
Focus_Pyr  <br>
Gr_#3 Hori  <br>
Gr_#4 Hori  <br>
Gr_#5 Hori  <br>
Gr_#6 Hori  <br>
Gr_#7 Hori  <br>
Gr_#8 Hori  <br>
Gr_#9 Hori  <br>
Gr_#10 Hori  <br>
Gr_#11 Hori  <br>
Gr_#12 Hori  <br>
Gr_#13 Hori  <br>
Gr_#14 Hori  <br>
Gr_#15 Hori  <br>
Gr_#16 Hori  <br>
Gr_#17 Hori  <br>
Grism_#3      <br>
Grism_#4      <br>
Grism_#5      <br>
Grism_#6      <br>
Grism_#7      <br>
Grism_#8      <br>
Grism_#9      <br>
Grism_#10      <br>
Grism_#11      <br>
Grism_#12      <br>
Grism_#13      <br>
Grism_#14      <br>
Grism_#15      <br>
Grism_#16      <br>
  <br>

APERTURE-WHEEL ITEMS  <br>
<table>
<tr><td>Cal_90          </td><td> # Imaging Calcite plate  </td></tr>
<tr><td>Cor_1pos        </td><td> # Coronographic mask with 1 size hole  </td></tr>
<tr><td>Cor_4pos        </td><td> # Coronographic mask with 4 different size holes  </td></tr>
<tr><td>Ech_0.7"        </td><td> # Echelle (vertical) slit, 0.7" wide  </td></tr>
<tr><td>Ech_0.8"        </td><td> # Echelle (vertical) slit, 0.8" wide  </td></tr>
<tr><td>Ech_1.0"        </td><td> # Echelle (vertical) slit, 1.0" wide  </td></tr>
<tr><td>Ech_1.2"        </td><td> # Echelle (vertical) slit, 1.2" wide  </td></tr>
<tr><td>Ech_1.6"        </td><td> # Echelle (vertical) slit, 1.6" wide  </td></tr>
<tr><td>Ech_1.8"        </td><td> # Echelle (vertical) slit, 1.8" wide  </td></tr>
<tr><td>Ech_2.2"        </td><td> # Echelle (vertical) slit, 2.2" wide  </td></tr>
<tr><td>MOS_mask        </td><td> # MOS mask  </td></tr>
<tr><td>Pol_1.0"        </td><td> # Specpol Calcite plate with 1.0" slitlet (hypothetical)   </td></tr>
<tr><td>Pol_1.4"        </td><td> # Specpol Calcite plate with 1.4" slitlet (hypothetical)   </td></tr>
<tr><td>Pol_1.8"        </td><td> # Specpol Calcite plate with 1.8" slitlet   </td></tr>
<tr><td>Slit_0.4"       </td><td> # Long slit 0.4"   </td></tr>
<tr><td>Slit_0.5"       </td><td> # Long slit 0.55"  </td></tr>
<tr><td>Slit_0.75"      </td><td> # Long slit 0.75"  </td></tr>
<tr><td>Slit_1.0"       </td><td> # Long slit 1.0"  </td></tr>
<tr><td>Slit_1.2"       </td><td> # Long slit 1.0"  </td></tr>
<tr><td>Slit_1.3"       </td><td> # Long slit 1.3"  </td></tr>
<tr><td>Slit_1.8"       </td><td> # Long slit 1.8"  </td></tr>
<tr><td>Slit_10.0"      </td><td> # Long slit 9.9"  </td></tr>
<tr><td>Slit_2.5"       </td><td> # Long slit 2.4"  </td></tr>
<tr><td>Slit_5.0"       </td><td> # Long slit 4.8"  </td></tr>
<tr><td>VertOff_0.5b    </td><td> # Vertical offset slit 0.5" blueshifted cenwav  </td></tr>
<tr><td>VertOff_0.5r    </td><td> # Vertical offset slit 0.5" redshifted cenwav  </td></tr>
<tr><td>VertOff_0.8b    </td><td> # Vertical offset slit 0.8" blueshifted cenwav  </td></tr>
<tr><td>VertOff_0.8r    </td><td> # Vertical offset slit 0.8" redshifted cenwav  </td></tr>
<tr><td>VertOff_1.0b    </td><td> # Vertical offset slit 1.0" blueshifted cenwav  </td></tr>
<tr><td>VertOff_1.0r    </td><td> # Vertical offset slit 1.0" redshifted cenwav  </td></tr>
<tr><td>VertOff_1.3b    </td><td> # Vertical offset slit 1.3" blueshifted cenwav  </td></tr>
<tr><td>VertOff_1.3r    </td><td> # Vertical offset slit 1.3" redshifted cenwav  </td></tr>
<tr><td>VertOff_1.9b    </td><td> # Vertical offset slit 1.9" blueshifted cenwav  </td></tr>
<tr><td>VertOff_1.9r    </td><td> # Vertical offset slit 1.9" redshifted cenwav  </td></tr>
<tr><td>VertOff_8.8b    </td><td> # Vertical offset slit 8.8" blueshifted cenwav  </td></tr>
<tr><td>VertOff_8.8r    </td><td> # Vertical offset slit 8.8" redshifted cenwav  </td></tr>
<tr><td>Vert_0.5"       </td><td> # Vertical slit 0.5"  </td></tr>
<tr><td>Vert_0.75"      </td><td> # Vertical slit 0.75"  </td></tr>
<tr><td>Vert_0.9"       </td><td> # Vertical slit 0.9"  </td></tr>
<tr><td>Vert_1.3"       </td><td> # Vertical slit 1.3"  </td></tr>
<tr><td>Vert_1.8"       </td><td> # Vertical slit 1.8"  </td></tr>
<tr><td>Vert_10.0"      </td><td> # Vertical slit 10.0"  </td></tr>
</table>