dara norman

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  • in reply to: GMOS IFU data reduction scripts (updated Oct 2016) #1423

    dara norman
    Participant

    Hi, there are also examples for data reduction in the GMOS Cookbook available from the NOAO National Gemini Office. You can find the Cookbook under ‘GMOS’ on USNGO page ( http://ast.noao.edu/nssc/usngo ).
    Example reductions for the various GMOS modes are available under the ‘Processing Science Data’ sections. Questions about anything here would be most efficiently answered through the Gemini help desk.
    DARA

    in reply to: GMOS IFU data reduction scripts (updated Oct 2016) #699

    dara norman
    Participant

    Hi James,
    I am very sorry for the delay in responding and will try to do better.
    Apologies but I think I mis-stated my problem. First I am indeed in Iraf cl. I am using gfresponse on the gcal flat, but it is true that I was using the twilight flat to do an illumination correction, i.e.
    gfresponse gcalflat output sky=’twilight_flat’

    I tried just leaving off the ‘sky=twilight_flat’ part and I get the same error. I also tried using sky= some other gcalflat, but I get the same error as above. Therefore, I don’t think the error is in the fact that I am using a twilight for the correction. As I mentioned, I am surprised that one can have an equation in this context in the code, so is there something that needs to be set that I am not doing?

    Thanks for any and all help. DARA

    in reply to: GMOS IFU data reduction scripts (updated Oct 2016) #697

    dara norman
    Participant

    Hi again, Well I didn’t get so far into my reduction… I am running into a problem with gfresponse. I am using a twilight flat to make a response curve and I run into the error:
    ERROR: ambiguous parameter a' within<searchpath>’
    “# Transform this “index image” as usual onto the same co-ordinates a …”
    line 265: gmos$gfresponse.cl
    called as: `gfresponse (mode=h)’

    When I have a look at gfresponse.cl, my limited knowledge of these things suggests that the culprit seems to be the line of code just before line 265 , where there is the loop:
    for (i=j1; i<=nslit; i+=1) {
    j=j+1
    imexpr(“I+0*a”, idxim//”[“//l_sci_ext//”,”//j//”,append]”,
    a=l_inimage//”[“//l_sci_ext//”,”//j//”]”)
    }
    However, I have no idea how to fix this error. I am surprised that one can even have an equation in this context.
    Thanks for any/all help you can give.
    DARA

    in reply to: GMOS IFU data reduction scripts (updated Oct 2016) #696

    dara norman
    Participant

    Hi James, OK I have things working now. The problem was with running ur_setup in the right order for things to work properly under Ureka. I think the instructions could be more clear… Thanks for the quick responses. DARA

    in reply to: GMOS IFU data reduction scripts (updated Oct 2016) #695

    dara norman
    Participant

    Hi James, I will try your suggestions ASAP. Hopefully before the end of the week. I am finishing up with my REU student this week. DARA

    in reply to: GMOS IFU data reduction scripts (updated Oct 2016) #693

    dara norman
    Participant

    Hi James,
    I seem to be having problems running ifudr right off the bat! I am not sure if the problem is in the installation of you fork OR in how I am using gfreduce itself, but I am trying to extract the apertures from the flat of a one slit mode ifu observation using gfreduce. I have Ureka installed, along side my regular IRAF which is also 2.16.
    I get through the bias and overscan subtraction but when I get to GFextract -> Gmosaic I get an error that:
    ERROR: Cannot open file (/tmp///.IMT501)
    “imdelete (tmptile, verify-, >& “dev$null”)”
    line 1189: gmos$gmosaic.cl
    called as: `gmosaic (inimages=tmpin9450x, outimages=tmppaste9450t, outpref=, fl_paste=no, fl_vardq=no, fl_fixpix=yes, fl_clean=no, geointer=linear, gap=default, bpmfile=gmos$data/chipgaps.dat, statsec=default, obsmode=IMAGE, sci_ext=SCI, var_ext=VAR, dq_ext=DQ, mdf_ext=MDF, key_detsec=DETSEC, key_datsec=DATASEC, key_ccdsum=CCDSUM, key_obsmode=OBSMODE, logfile=gmos.log, fl_real=no, verbose=yes)’
    “logfile=l_logfile, fl_real-, verbose=l_verbose)”
    line 642: gmos$gfextract.cl

    If I just look for the file /tmp///.IMT501 with an ls, it is there so I don’t understand what the problem is.
    I followed the instructions in your readme file for installation of the ifudr
    DARA

Viewing 6 posts - 1 through 6 (of 6 total)