== Current status and issues ==
Things to be aware of at the present time (updated April 2022):
# The wind blind is currently out of commission, pending repairs to a cable.
# Information regarding the filters installed in the instrument can be found [[#Filters|below]].
== Where to find the information you need ==
This wiki is intended to supplement the existing TCS and instrument user's guides, filling the void of information about the telescope and facility, and providing recipes for observing with the telescope-instrument-TCS combination.
For detailed information about the TCS and instrument softwareinstruments, please refer to the manuals listed below, which are available in the warm room, the hostel library, and are linked to on the 1.0-metre section of the following web page: http://www.saao.ac.za/observing/operating-manuals * "1.0-m Telescope Control Software: A User's Guide" by Stephen Potter & Hannah Worters * [https://www.saao.ac.za/wp-content/uploads/sites/5/SAAOCCDmanual.pdf "SAAO CCD Camera Control Program, version 1.2" by J. W. Menzies] * [https://shoc.saao.ac.za/Documents/ShocnHelpful.pdf "SHOC User Guide", by Rocco Coppejans] – contains useful instrument info, but new software described on SHOC wiki
* [https://topswiki.saao.ac.za/index.php/SHOC SHOC wiki]
* [https://shoc.saao.ac.za/Documents/ShocnHelpful.pdf "SHOC User Guide (SHOCnHelpful)", by Rocco Coppejans] – contains useful instrument info, but new software described on SHOC wiki
* [https://shoc.saao.ac.za/SHOCsnr.html SHOC exposure time and prebin calculator]
* [https://shoc.saao.ac.za/Pipeline/README.txt SHOC data reduction pipeline]
* [https://cloudcape.saao.ac.za/index.php/s/9QgG2QpI3GSnoO8"SAAO CCD Camera Control Program, version 1.2" by J. W. Menzies]
Much of this page assumes that the user has never before set foot in the dome, and has no local human to guide them. [[40" / 1.0m#Telescope pointing limits|Telescope pointing limits]], [[40" / 1.0m#Troubleshooting| troubleshooting information]] and [[40" / 1.0m#Start-up recipes|start-up]] and [[40" / 1.0m#Shutdown procedures|shutdown]] recipes should prove useful for experienced observers and novice users alike.
* '''For STE3 or STE4''', a monitor at the right-hand end of the desk labelled '''imag40''', running the CCD Camera Control software.
* A thin client with monitor labelled '''ltsp''' that saves the data from the instrument PC and can be used to run a web browser, ds9, etc. '''For SHOC''', it can be used to run the instrument control software via a web browser. It is possible to download your data to a laptop on the network from this PC (use '''scp''' or '''sftp ccd40@ltsp.suth''' - the monitor is labelled with the password).
* A PC running the '''Telescope Control Software (TCS)''' for acquisition and guiding. Associated with this is a second monitor which displays the target and telescope coordinates, etc.
* A black & white printer. Print command: '''lpr -Ppr40in ''filename'''''
At present there There are no DVD writers, USB ports or DAT drives in the dome for copying data from ltsp, this should be done using scp.
==== Operational resources ==== * A '''duty technician''' phone number list, on the wall.* Laminated facility '''start-up and shutdown recipes'''.* Assorted notices providing information on '''telescope limits, weather resources''', etc. ===== Log books, almanacs, etc. =====
In the warm room, in labelled boxfiles, you will find the following resources to help with your observations:
* '''Users' guides''' for the TCS, STE3/STE4, SHOC and the retired UCT CCD, which contains useful information about the online reductions programme for STE3/4.
* A triplicate '''CCD Camera log book''' in which to record details of each image if you are using STE3/STE4. If you finish a log book, there are more on top of the metal cupboard on the observing floor. Please take the next book in numerical order. There is no such log for use with SHOC; you are advised to keep your own records, e.g. in a spreadsheet.
* A '''Sutherland Almanac''', including bright stars, sunset/rise and twilight times, phases of the moon, etc.
* A catalogue of photometric '''standard stars'''.
* An A4 sheet entitled '''Sutherland Observing Record''', on which to log the duration of observations, time lost, etc. each night.
* '''XY-slide reset button on the grey box.''' On the top of the grey box with the emergency stop button is a small blue button to press if the TCS XY-slides fail to respond.
* '''PC monitor to the right of the North pier.''' This screen displays pointing information, including your target coordinates and current telescope coordinates, for use when slewing the telescope manually.
* '''Observing Floor Control Panel.''' On the North wall by the North pier there is a grey box labelled "Dome Shutter and Windblind Control", which has red buttons for opening/closing the dome shutter and raising/lowering the windblind. One must first switchon the telescope power (blue console) and press the top button labelled "Request Local Control" to activate the panel. The redindicator will illuminate when the panel is active. To open/close the dome, push and hold the appropriate button until the shutters stop moving and you hear a beep. To raise/lower the windblind, push and hold the appropriate button until the blind reaches the desired height. '''Do not raise the windblind while pointing into the wind; first rotate the dome by 180°, raise the blind then rotate back. '''There is also a switch for the upper dome lights.* '''Dome flat lamp switch.''' On the North wall, just above and left of the monitor, is a dimmer switch that controls the incandescent lamp used for taking [[#Dome flats|dome flats]].
* A red '''balance weight''' on a rope, which can be hung from an appropriate place below the primary mirror cell if the telescope jumps while tracking (usually when tracking around the zenith).
* Tall and short '''wheeled ladders''' for hanging the weight and for accessing the reset buttons on the Merlin transputer crates. Make sure the ladders are clear of the telescope while observing (the taller ladder is usually stored on the West side of the observing floor under the catwalk, the other is pushed to the East side of the North pier).
*'''STE3/STE4''' has its own blue '''instrument Merlin crate''' mounted to the cylindrical dewar. There is a red reset button on the side of the crate that should be pressed if the instrument control software hangs, crashes or reports a "Merlin error". There is no need for observers to fill the dewar with liquid nitrogen; this is done by technicians in the morning and afternoon.
* '''SHOC''' does not require liquid nitrogen; it is peltier-cooled. It has no Merlin crate. The control PC ("shocnawe" or "shocndisbelief" ) is mounted in a crate below the primary mirror cell.
=== Filters ===
The blue metallic box below the acquisition/guider box contains the filter wheel(s), labelled on the East and West sides. Each wheel has 8 filter positions; position 1 is the reference and position 8 is always empty, so that with two wheels installed, one wheel should always have position 8 in the beam (unless one wheel contains neutral density filters). '''Filters must not be removed from the filter wheels.'''
You will have been allocated the appropriate wheel(s) for your run based on Throughout 2022, the filters specified in your observing proposal. A the 1-m wheels will be as follows: {| class="wikitable" border="1"|-! Wheel! 1! 2! 3! 4! 5! 6! 7! 8|-| Geneva A1| U| B| V| R| I| BG38| Empty| Empty|-| Geneva B1| u'| g'| r'filter wheel rota| i'| z'' can be found pinned to the notice board on the South pier. It details the filter in each position of each wheel and the name of the wheel| Hα (s20nm) you have been allocated. If the incorrect wheel is in the telescope, please contact a technician. Please direct any other filter-related enquiries to hannah at saao.ac.za.| [O III] 501nm| Empty|}
=== The old warm room ===
10. '''Open the mirror covers''' by clicking the "DOME" pulldown menu and selecting "Mirror OPEN". The mirror indicator on the top right will turn green.
11. Switch '''dome to AUTO''' by clicking the red "MAN" button (top right of display). It will turn green. At times, it is necessary to either rotate the dome or point the telescope to Zenith so that the dome is able to locate its poisition and avoid the possibility of the dome not correctly following the telescope .
12. Turn '''telescope tracking on''' by clicking the red "Tracking is OFF" button. It will turn green.
Please [[#Contact numbers|call the duty electronics technician]].
=== If the TCS-web interface is not responding ===
If the TCS-web is not responding to any inputs, then make sure that the WebUser has Control button is clicked and shows green.
To access the TCS from the web browser, click here [http://remoteops1desk.suth.saao.ac.za:5001/ TCS-Web].
[[File:WebUser-Control.jpeg|600px|frameless]]
== Instrument start-up procedure ==
=== STE3/STE4 ===
1. Follow the start-up procedure described in Sections 1 and 2 of the [https://wwwcloudcape.saao.ac.za/wp-contentindex.php/uploadss/sites/5/SAAOCCDmanual.pdf9QgG2QpI3GSnoO8|SAAO CCD Camera Control Program, version 1.2", by J. W. Menzies].
'''Important:''' Ensure that the following are correct in the blue "Details of Run" startup panel:
If you encounter telescope pointing problems, check the time and date displayed on the TCS, as the cause could be the time server. If the date/time is wrong, please call the electronics technician for assistance.
'''The Dome Shutter obscuring the telescope'''
At times, the dome does not find its position, and therefore does not follow the telescope correctly. To avoid this, it is always a good idea to point the telescope to Zenith, or rotate the dome so that it can establish its position by passing through some of the cardinal points.
==Webcam==
There is a webcam display that should be visible at all times for viewing and listening to the telescope while observing.
Login to the Foscam app with the following details:
'''Email:''' it@saao.ac.za
'''PW:''' Ask IT
This is the account you will need to login with using the Download and install Foscam appfrom here:
[https://itunes.apple.com/za/app/foscam/id924381688?mt=8 App Store]
'''URL:''' https://40incam.suth.saao.ac.za <-- This only works from Internet Explorer
'''Username:''' adminoperator
'''PW:''' Ask IT40incam