LUCI Instrument Element

The LUCI Instrument Elements are relatively deep in scope, since the LUCIs themselves are complex workhorse instruments with a considerable number of mechanisms to configure and detector settings to specify

It is important to note that the Instrument Component Element only allows the user to specify the initial configuration of the instrument. If the user would like to cycle through filters, change exposure times, etc. this must be done through the LUCI Sequence Iterator, which allows iteration through several configuration with in an observing sequence.

LUCI 1 and LUCI 2 Instrument

LUCI1 and LUCI2 both have multiple modes, including longslit and multi-object spectroscopy and imaging. To reflect this complexity, the LUCI Instrument Elements in the OT has many configurable components, including mechanisms and detector settings. Slight differences in the filter placement and masks available in LUCI1 compared to LUCI2 necessitated two individual Instrument elements for the LUCI1 and LUCI2 instruments for script generation.

The mechanisms currently available for LUCI1 and LUCI2 are identical.  The fraternal Instrument Iterator allows users to configure LUCI1 and LUCI2 instruments with different configurations while maintaining identical telescope configurations.

The Instrument Element is where the MOS is configured to insert longslit or custom masks.

To generate an observation with a user generated mask, select “Custom” from the Mask drop down list then upload the LMS file in the Mask in Program menu.

If “MOS Telluric” is selected, the user can generate an observation in the offset tab that auto-calculates the placement of the Telluric through user-specified slits. The steps for generating a Telluric observation are outlined in the Library Notes or OT LUCI Examples. In the case where MOS Telluric is set to YES the Target Element will not be populated.  If MOS Telluric is set to NO when a mask is loaded,  the Target Element will be populated with both the Target and any Guide Stars.