Changes
Mookodi is a low resolution spectrograph and imager, designed to be operated fully robotically. It was designed and built by Liverpool John Moores University (LJMU), and installed on the Lesedi telescope in December 2021 and . It will undergo a period of science commissioning and 'high risk' observations during the first trimester of 2022, with the ability to do spectroscopy and low-cadence imaging.
== Instrument Description ==
=== Specification ====== Suitable Uses Specifications ===
*'''Camera''': [[Media:Andor iKon-M 934 Specifications.pdf|Andor DU934P]] deep depletion camera, 1024 × 1024 CCD, 13 μm pixels
*'''Spectral range:''' 400.5 – 799.5 nm <ref name="spec">Preliminary values based on lab tests at LJMU or original spec. Actual values to be confirmed during commissioning.</ref>
*'''Plate scale:''' 0.6 arcsec/px ± 0.06 arcsec/px <ref name="spec" />
*'''Field of view:''' 10' × 10'
*'''Slit:''' Long slit with narrow (2") and wide (4") sections.
<!--*: 8.4' × 2 arcsec
*: 8.4' × 4 arcsec -->
*'''Filters:'''
*:'''Filter Slide A:''' [[Filter Plots and Data|Full set of SDSS filters]] (u', g', r', i', z')
*:'''Filter Slide B:''' Longpass [[Media:OB_Datasheet.pdf|order blocking (OB)]] filter, and clear filter. There are three empty slots in this slide available for future use.
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<references />
=== Suitable Uses ===
*Spectroscopy
*Low-cadence imaging: the camera is not a frame transfer camera, and in the current implementation exposures are controlled via an iris shutter. The shutter is life-cycle limited and not suitable for high-cadence observations.
== Operating Mookodi ==
# '''Instrument Configuration:'''
#* Select the desired configuration for each component. The pneumatics and lamps will respond on the push of the button, and indicate when they are busy or in the desired configuration. '''To conserve lamp lifetime, don't leave them on for extended periods of time.'''
#* Select the required filter via the dropdown menu under the Filter A or Filter B headings and press the SET button to activate the filter slides. The box above the dropdown indicates the name of the filter in position for each slide, or BUSY if the slide is still finding its requested position.
# '''Target Acquisition:''' NOT IMPLEMENTED
From a terminal window:
Where <code>yyyy</code> is the year, <code>mm</code> is the month, and <code>dd</code> is the day. The convention is that the data rolls over to the current date at 1200 UTC, hence all the files from a given night are stored in the folder corresponding to the date at the start of the night. e.g. All observations started on the night of 2021/12/11 will be stored in <code>/data/lesedi/mkd/2021/1211/</code>.
