BayTech PS-4A Guía para resolver problemas

FLAMINGOS at the KPNO 4-mAn Observer's GuideNick Raines & Richard ElstonVersion 2.34, 2006 April 04FLAMINGOS@4-m, Ver. 2.34, 2006 Apr 04 Page

During the first execution of initflam.pl, you will be asked at multiple points whether you wish tocontinue. In general, if the daemon windows say li

III.Nightly Startup TasksA. FLAMINGOS SetupWe recommend that you complete the following list prior to each night's observing.1. Restart all daemo

should have ~5 GB of space. However, note that the image acquistion scripts will complain on eachand every image if the disk space is is ≥ 93% full,

Opening the telescope and dome.Preliminary pointing check of a bright star on the North Port TV camera. The star should be locatedon the grease penci

detail the use of both here.The flmntools tasks fwcheck and fwscan take differences of images, and then run SExtractor onthe central 1250 × 1250 pixel

3 2 0.82'' 0.82'' 0.77'' 42 4 3 0.88'' 0.87'' 0.81'&ap

IV.Imaging with FLAMINGOSA. OverviewFLAMINGOS may be used for imaging through J-, H-, K-, and Ks-band filters. Sky emission in these bands isvariable

On the FLAMINGOS command line:config.dither.kpno.pl Use to setup a sequence of images dithered about a common pointingcenter.config.exposure.pl Set f

of valid positions. Note that position 0 for each wheel is the home position. As with the MOS script,the script will print out a detailed informatio

the actual present bias value hit the Update All button on the UFSTATUS GUI.WEATHER A numerical descriptor of common environmental conditions (1=photo

ContentsI. FLAMINGOS + KPNO 4-m OverviewII. Starting FLAMINGOSIII.Nightly Startup TasksA. FLAMINGOS SetupB. Startup on the SkyIV.Imaging with FLAMINGO

pointing coordinates, and dither about that new position. See the next section on offseting the telescope fromthe FLAMINGOS command line.You can moni

~4mguest/bin/Example.many.scripted.darks.cshNote that the blank lines are very important!Also, be very certain to check later that the script comple

V.Taking Spectra with FLAMINGOSA. OverviewFLAMINGOS may be used for obtaining long slit or multi-object slit spectra; please see Section I.FLAMINGOS +

These may be done in the afternoon.The following list of commands is used for long slit and MOS plate spectroscopy:On the flamingos command line:confi

The easiest way to check the straightness of this wide slit is to draw a ds9 ruler parallel to one edge.Then double click on the ruler, to find out th

We typically use alignment star boxes that are 24 – 30 pixels wide. It is very important that thisparameter be set to within a few pixels of the actu

The images are usually kept in /data/4mguest/Maskfiles/.Flip and rotate until the image WCS matches that of a raw FLAMINGOS frame.Turn on tiling, with

Type :goAn xgterm window with two cross-cut plots through the box, one each for the x and y axes will popup.Type q to step through each of the boxes i

MOS plate data.Walking up the slit:We usually move up the slit in steps of 10" for a total of 5-7 positions.Use singleimage.pl to take an image b

projector have absorption bands near 2.3 microns which will show up in the flatfield spectra. Therefore, analternative approach to obtaining flats is

I. FLAMINGOS + KPNO 4-m OverviewFLAMINGOS is the FLoridA Multi-object Imaging Near-ir Grism Observational Spectrometer. This manualprovides the user

We usually use only sky lines (OH) for wavelength calibration in the HK-band.If you wish to resume guiding on the science target for additional observ

VI.Shutting Down at the End of the NightAt the end of a long and (we hope!) productive night of observing, there is a small sequence of things that ne

VIII.Troubleshooting1) Problem: The image looks funny. You can see all 32 amplifiers, and the signal level is ~58,000 ADU; thepreceeding or followin

motor controller, and the MCE4 array controller) which accept commands via serial ports. The perle has oneserial port connection for each device. C

Internal Temperature True RMS current: 1.6 Amps Maximum Detected: 1.7 Amps Internal Temperature: 18.5 C Circuit Breaker: On Selection Outle

Figure 2. Fiber optic converter boxes below MCE4 (left panel) and below perle (right panel) c) Problem: The image acquisition counts past the expo

saying that the time for the wheel's motion to complete has expired.The default algorithm for motion of the wheels is that they first go to the h

IX.Contacts & Further Information1. Dick Joyce, Ron Probst, and/or Nick Raines will help new observers during their first night of observing withF

Appendix 1: FLAMINGOS Command Listing and Partial Description of FunctionA. Basic Instrument Configuration Commandsconfig.exposure.pl Sets object, fi

F. Resetting the Array Controller (MCE4), the Motor Controller, and the IocommFrom flamingos1a:1. telnet baytech userid: mce4pow, motorpow, or p

Spectral CharacteristicsFilter / GrismCombinationBandR = λ/ δλ(2 pix slit)Dispersion(Å/pixel)R = λ / δλ (3 pix slit)JH-bandpass +JH-grism J 1400

H. Instrument Engineering Commandscenter.of.rotation.pl Determine the center of rotation from 3 points.config.location.pl Copies the correct Flamingos

Appendix 2: Readout SchematicFLAMINGOS@4-m, Ver. 2.34, 2006 Apr 04 Page 41 of 44Figure 3 Array Readout Timing. All 4 quadrants of the array are read

Appendix 3: XBOX Default Parameter List for Instrument at PA = 90 degreesPACKAGE = ucsclrisTASK = xboximage = target.0001 imageinput = box1 input fil

Appendix 4: Additional Notes on MOS PlatesAn example MOS plate for use at the 4-m is shown adjacent, in Figure 4. Itis approximately full size (~10

Appendix 4: Additional Notes on MOS Plates: A Figure of the MOS Wheel, Useful When Loading PlatesMOS Position PA Name

-h option is for human readable format, and it prints values out with KB, MB, and GB suffixes as appropriate).Data Analysis: An IRAF session will be

FLAMINGOS@4-m, Ver. 2.34, 2006 Apr 04 Page 6 of 44Figure 1. FLAMINGOS Functional Diagram. The relative layout and connnections between the various p

Halting A Script: Never type Ctrl-C . It is much safer to suspend a job with Ctrl-Z. Then you can kill thescript by typing jobs, and kill -9 %

II.Starting FLAMINGOSWhen you arrive at the 4-m telescope, you may have to bring up the FLAMINGOS windows and initialize thesystem (it should have bee

7. You are now ready to initialize FLAMINGOS! This is done by running the command initflam.pl. Thisscript initializes agents and displays the follow