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Transcript of SWIFT: SWIFT Users Manual - Astrophysics â€؛ instr â€؛ swift â€؛ pdfs â€؛ آ ...

  • SWIFT: SWIFT Users Manual

    SWF- Fraser Clarke Version: 0.2

    Date: 2009-04-29

  • SWIFT Users Manual Version: 0.2 SWF- Date : 2009-04-29 Fraser Clarke Page : 3 of 14

    Version Date Author Comments

    0.1 2008-12-08 FCl Created

    0.1 2009-04-29 FCl Changes relevant for April/May 09 run

  • SWIFT Users Manual Version: 0.2 SWF- Date : 2009-04-29 Fraser Clarke Page : 4 of 14

    Contents

    1 Introduction 5

    2 Daily tasks check list 5 2.1 Every afternoon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Every morning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    3 Software Startup 6 3.1 Start up CCD PCI card drivers . . . . . . . . . . . . . . . . . . . . 6 3.2 Check disc space . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.3 Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.4 DataDisplayer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.5 SwiftUserGUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

    3.5.1 Instrument Control Panels . . . . . . . . . . . . . . . . . . . 7 3.5.2 Instrument Monitoring Panels . . . . . . . . . . . . . . . . . 9 3.5.3 General Information . . . . . . . . . . . . . . . . . . . . . . 9

    3.6 CCD control GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.7 Network Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 9

    4 Software Operation 9 4.1 Back up data from swiftws . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 RTD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    4.2.1 How to make reconstruction vectors . . . . . . . . . . . . . 10 4.3 Data Reduction Pipeline . . . . . . . . . . . . . . . . . . . . . . . . 10

    5 Observing strategies 10 5.1 Position Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.2 Exposure times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.3 Faint objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.4 AO flatmap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.5 Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.6 Spectral “Features” . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

    5.6.1 9500Å emission . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.6.2 Emission “chains” . . . . . . . . . . . . . . . . . . . . . . . 12 5.6.3 Fringing? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

    6 Trouble Shooting 12 6.1 IP addresses/can’t connect to swiftXX . . . . . . . . . . . . . . . . 12 6.2 TCS information not updating . . . . . . . . . . . . . . . . . . . . 12 6.3 Can’t offset telescope from TCSAO window . . . . . . . . . . . . . 13 6.4 REALLY can’t connect to the AO system . . . . . . . . . . . . . . 13 6.5 ArcVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

    6.5.1 Loss of communications with ArcVIEW . . . . . . . . . . . 13 6.5.2 ERROR 111 writing message . . . . . . . . . . . . . . . . . 13 6.5.3 ArcVIEW won’t shut down . . . . . . . . . . . . . . . . . . 14 6.5.4 Can’t restart a module . . . . . . . . . . . . . . . . . . . . . 14

  • SWIFT Users Manual Version: 0.2 SWF- Date : 2009-04-29 Fraser Clarke Page : 5 of 14

    1 Introduction

    This document is designed to be users manual for the Oxford SWIFT instrument at the Palomar 200-inch telescope.

    2 Daily tasks check list

    Quick check list of daily startup/shutdown checks. More detailed descriptions of each proceedure are below.

    2.1 Every afternoon

    Good to do this before dinner. The dome is dark from 4pm.

    • Check the cryostats have been filled (on white board in data room)

    • Back up data from swiftws to DVD

    • Check disc space on swiftws and swiftlcu

    • Start up SwiftUserGUI

    • Check/restart ArcVIEW

    • Open up network power supply webpage. Check on/offs.

    • Start/initalise sdsuGUI (after midday)

    • Restart swift lcu2ws

    • Restart/check datadisplayer master slave

    • on swiftws & swiftlcu, move to current night’s data directory and restart rtdds9

    • Take some short darks to check the read noise

    • Take some standard calibrations (dome is dark from 4pm)

    – darks, if you know your exposure times

    – flats in all scales to be used

    – arcs in all scales to be used

    – trace in all scales to be used

    – 5 bias frames (0 length darks)

    2.2 Every morning

    • disconnect from AO (Disconnect AO on TCS/AO panel)

    • Take any calibrations you need (dome lights will be on from ∼7:30am)

    • Check power off to all lamps

  • SWIFT Users Manual Version: 0.2 SWF- Date : 2009-04-29 Fraser Clarke Page : 6 of 14

    3 Software Startup

    Log into the SWIFT workstation (swiftws) and the SWIFT LCU (swiftlcu).

    User: SWIFT Password: ******** (see support)

    To start up a terminal (terminal symbol in top bar, or Applications->System Tools->Terminal). For the April/May 09 run, most software is being run directly on the swiftlcu

    3.1 Start up CCD PCI card drivers

    You should only have to do this after a reboot of the LCU.

    • Log into swiftlcu

    • cd astropci

    • su (log in as root, note no ’-’)

    • ./astropci load

    • check that /dev/astropci0 and /dev/astropci1 exist

    • exit root

    3.2 Check disc space

    Make sure the /home disc on swiftlcu is not too full, there should be at least 8Gb free for a night’s observing. If it is too full, cd into the /home/swift/data directory and remove the oldest folders. Be sure they have been backed up!

    Also worth checking swiftws, but the disc here is much larger.

    3.3 Data transfer

    Data transfer must be restarted every day, after the first file has been created

    Data arrives from the CCD controllers onto the LCU. A copy of the data on the LCU is maintained and should not be touched. An automated script transfers the data from the LCU to the WS as soon as it arrives. To start this script;

    Log into swiftlcu (user swift, usual password). run the script swift lcu2ws.sh & (note &). logout of swiftlcu

    If the data do not transfer, it may be worth checking the IP address in the /etc/hosts file on swiftlcu matches up with the actual address of swiftws.

  • SWIFT Users Manual Version: 0.2 SWF- Date : 2009-04-29 Fraser Clarke Page : 7 of 14

    Figure 1: SWIFT User GUI

    3.4 DataDisplayer

    To set up the data displayer, run ; datadisplayer.sh from a terminal on swiftws, where and are the prefix

    of the two CCDs (normally “master” and “slave”). This will bring up two ds9 windows (ds9isis and ds9cherwell) which will automatically display master and slave images respectively as they arrive. Images are displayed with long wavelengths to the top of the image.

    It is useful to keep the window running the datadisplayer visibile in all workspaces as a notifyier of when new images arrive on the WS. The ds9 windows from this process seem to crash quite frequently. Just restart datadisplayer to fire them up again

    3.5 SwiftUserGUI

    The SwiftUserGUI is the main interface for operations. It currently runs only on the swiftlcu. To start up the GUI, run SwiftUserGUI on the swiftlcu. This will bring up a large window with several different sub panels, each of which should populate with a control panel.

    There are three tabs; “Instrumnet Control Panels”, “Instrument Monitoring Panels” and “General Information”.

    3.5.1 Instrument Control Panels

    These panels are the main ones for controlling the instrument functions.

  • SWIFT Users Manual Version: 0.2 SWF- Date : 2009-04-29 Fraser Clarke Page : 8 of 14

    3.5.1.1 TCS/AO control

    This panel controls the interface to the AO and TCS. There are five tabs “TCS”, “AO”, “RTD”, “History” and “Config”. At the bottom of the window are four buttons giving the status of the connections. “Link up” shows the TCS/AO GUI is connected to ArcVIEW. “TCS on” & “AO on” show whether ArcVIEW is receiving information from the AO/TCS systems respectively (these can be a bit unreliable unfortunately! A key test is to check if the “UTC-TCS” field is updat- ing every few seconds. This generally indicates everything is OK.). “Telescope stable” shows if the telescope is tracking.

    TCS tab This panel interfaces with the TCS. Offsets can be applied from the N/S/E/W control. These offsets move the telescope (i.e. to move a star East on the image, give the telescope a West offset). The U/D/L/R option is not fully tested, and may not work at high declination or different rotator positions. The maximum offset with AO loops closed is 7 arcseconds. If you need to move further, it is best to bootstrap it with two or more consecutive moves. The maximum offset is 120 arcseconds (a safety feature in the GUI). It is always good to check on the AO message window that the “pt” command was received with the right offsets.

    AO tab This tab interfaces with the AO system. You can open and close the AO loops. Always close TT and then DM, and always open DM and then TT. Make sure the DM and TT loops are open before telling the TO to slew the telescope. If the AO system is going to be rebooted, “disconnect AO” first.

    RTD tab This tab interfaces with the RTD ds9 window (rtdds9). Click on “clear regions” to setup the rtd into “click and drag mode”. In this mode, you can click on a postion on the RTD, and d