Asymmetry to csv.ipynb

{
 "cells": [
  {
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   "source": [
    "from astropy.io import fits\n",
    "from astropy import wcs\n",
    "import bz2\n",
    "import os\n",
    "import urllib.request\n",
    "import numpy as np\n",
    "import copy\n",
    "import matplotlib.pyplot as plt\n",
    "import csv"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "def asymmetry(ra, dec, r, petrorad, expab, expphi, run, camcol, field, rowf, colf, FITS_directory='Fits files/'  ,rerun=301):\n",
    "    #Returns an array of the fourier A1 parameter and the phase angle for a given object in the SDSS field specified\n",
    "    #by run, rerun, camcol, field, row, col @ row, col.\n",
    "    #r= Array of Radiuss to probe (in number of petrosian radiuses) to calculate the fourier coefficient for\n",
    "    #petrorad=the petrosian radius of the object in arcseconds\n",
    "    #expphi = The angle of the exponential fit, expressed as degrees, N through E\n",
    "    #expAB= The ratio of the semi major axes of the disk\n",
    "    # Run, rerun, camcol, field = Specified the SDSS field the object is contained in\n",
    "    # rowf, colf = the pixel coordinates of the centre of the image, in FITS coordinates (ie, first pixel is 1, not zero) \n",
    "    # FITS_directory=Location of folder of fits files\n",
    "    #Open FITS file from disk\n",
    "    try:\n",
    "        #Generate the name the FITS file will be stored under\n",
    "        runstring='0'*(6-len(str(run)))+str(run) \n",
    "        fieldstring='0'*(4-len(str(field)))+str(field)\n",
    "        fitsname='frame-i-'+runstring+'-'+str(camcol)+'-'+fieldstring\n",
    "        #Try to open the fits file. If it throws a filenotfound error, it's because this field hasn't been downloaded yet\n",
    "        file=fits.open(FITS_directory+fitsname+'.fits')\n",
    "    except FileNotFoundError:\n",
    "        #Generate the URL the zipped FITS file will be stored under\n",
    "        fitsurl='http://data.sdss3.org/sas/dr12/boss/photoObj/frames/'+str(rerun)+'/'+str(run)+'/'+str(camcol)+'/'+fitsname+'.fits.bz2'\n",
    "        print('Downloading from ', fitsurl)\n",
    "        #Save the zipped FITS file, extract the unzipped fits file\n",
    "        urllib.request.urlretrieve(fitsurl, FITS_directory+fitsname+'.fits.bz2')\n",
    "        f=bz2.open(FITS_directory+fitsname+'.fits.bz2')\n",
    "        #Save the unzipped FITS file to disk\n",
    "        save=fits.open(f)\n",
    "        save.writeto(FITS_directory+fitsname+'.fits')\n",
    "        save.close()\n",
    "        #Remove the zipped file to save space\n",
    "        os.remove(FITS_directory+fitsname+'.fits.bz2')\n",
    "        file=fits.open(FITS_directory+fitsname+'.fits')\n",
    "    image=file[0] \n",
    "    data=image.data\n",
    "    output=[]\n",
    "    \n",
    "    #If user has entered single radius, converts this to list so can be iterated over later\n",
    "    if type(r)==float or type(r)==int:\n",
    "        r=[r]\n",
    "    #Convert centre row and column to python convention (starting at zero), instead of FITS convention(starting at 1)\n",
    "    rowc=rowf-1\n",
    "    colc=colf-1\n",
    "    \n",
    "    \n",
    "    #Get coordinate parameters from header using astropy WCS class. \n",
    "    coords=wcs.WCS(image.header)\n",
    "    \n",
    "    #Checks ra & dec agree with FITS header to within 1 pixel. \n",
    "    checkradec(ra, dec, coords, rowc, colc)\n",
    "    \n",
    "    #Set up sub-function to return row, col pairs for given ra, dec values\n",
    "    def pix(raf,decf):\n",
    "        #Takes values of ra and dec (in degrees). Converts to an array of [row, col] in pixel values\n",
    "        array=coords.all_world2pix(raf,decf,0)\n",
    "        return array[::-1]\n",
    "    \n",
    "\n",
    "    #Get length of semi-major and semi-minor axes of petrosian ellipse. Assume petrosian radius is the geometric mean of a & b. In degrees\n",
    "    a=(2./(1+expab**2))**0.5*petrorad/3600.\n",
    "    b=(2./(1+expab**-2))**0.5*petrorad/3600.\n",
    "    \n",
    "    \n",
    "   \n",
    "    \n",
    "    \n",
    "    #Create an array of theta values to sample the ellipse at\n",
    "    dtheta=360./360.\n",
    "    thetas=np.arange(0,360,dtheta)\n",
    "    thetarad=[i*2*np.pi/360. for i in thetas]\n",
    "    for relement in r: \n",
    "        #Get semi-major and semi-minor axes of the ellipse to calculate the fourier coefficients around. In arcsec\n",
    "        ar=a*relement\n",
    "        br=b*relement\n",
    "        rs=getrs(thetas, ar, br, expphi)\n",
    "        #Create array with data values for each theta, r combination\n",
    "        pixbrightness=[]\n",
    "        for i in range(len(thetas)):\n",
    "            #Calculate ra, dec values of target\n",
    "            #First calculate distances from centre\n",
    "            drai=rs[i]*np.sin(thetarad[i])\n",
    "            ddeci=rs[i]*np.cos(thetarad[i])\n",
    "            #Then add on coordinates of centre\n",
    "            rai=ra+drai\n",
    "            deci=dec+ddeci\n",
    "\n",
    "            #Convert to pixels\n",
    "            pixel=pix(rai,deci)\n",
    "            rowi=float(pixel[0])\n",
    "            coli=float(pixel[1])\n",
    "            rowiround=int(round(rowi))\n",
    "            coliround=int(round(coli))\n",
    "            pixbrightness.append(data[rowiround, coliround])\n",
    "\n",
    "\n",
    "        #Weight the pixel brightnesses by cos(theta) and sin(theta)\n",
    "        brightnesssin=[pixbrightness[i]*np.sin(thetarad[i]) for i in range(len(thetarad))]\n",
    "        brightnesscos=[pixbrightness[i]*np.cos(thetarad[i]) for i in range(len(thetarad))]\n",
    "        #Find the a1 & b1 fourier coefficients. 1/pi * integral over pixelbrighness sin/cos (integrated using np.trapz). f(x)=ancosntheta+ bnsinntheta, summed over all n\n",
    "        a1=np.pi**-1*np.trapz(brightnesscos, thetarad)\n",
    "        b1=np.pi**-1*np.trapz(brightnesssin, thetarad)\n",
    "        a0=np.pi**-1*np.trapz(pixbrightness, thetarad)\n",
    "        #Now find fourier coefficients in the form f(x)=Ancos(ntheta-phi)\n",
    "        A1=(a1**2+b1**2)**0.5\n",
    "        phi=np.arctan(-a1/b1)\n",
    "        output.append([A1, phi*360./2/np.pi, A1/a0, a0])\n",
    "    return output\n",
    "    file.close()\n",
    "    \n",
    "    \n",
    "    \n",
    "def ellipse(a,b,theta,phi):\n",
    "    #returns the r coordinate of the ellipse with:\n",
    "    #semi major axes a,b at polar angle theta degrees (measured from north, through east),\n",
    "    #with semi-major axis offset from north by phi degrees (measured from north through east)\n",
    "    thetarad=theta*2*np.pi/360.\n",
    "    phirad=phi*2*np.pi/360.\n",
    "    r=a*b/((b*np.cos(thetarad-phirad))**2+(a*np.sin(thetarad-phirad))**2)**0.5\n",
    "    return r\n",
    "\n",
    "def checkradec(ra, dec, coords, row, col):\n",
    "    #checks to see if the pixel coordinates returned by a WCS object coords match ra and dec to correct values row and column\n",
    "    reportedrow=coords.all_world2pix(ra,dec,0)[1]\n",
    "    reportedcol=coords.all_world2pix(ra,dec,0)[0]\n",
    "    try:\n",
    "        if (reportedcol-col)**2>1 or (reportedrow-row)**2>1:\n",
    "            raise ValueError('Coordinates from PhotoObj and ra & dec values do not match. Row discrepancy is ', reportedrow-row, 'Column discrepancy is', reportedcol-col)\n",
    "    except ValueError:\n",
    "        pass\n",
    "def getrs(thetas, a, b, phi):\n",
    "    rs=[]\n",
    "    for i in thetas:\n",
    "        rs.append(ellipse(a,b,i,phi))\n",
    "    return rs\n",
    "def functionchecker(ra, dec, r, petrorad, expab, expphi, run, camcol, field, rowf, colf, A1, A0, phi, FITS_directory='Fits files/'  ,rerun=301, A2=0.2, A3=0.14):\n",
    "    #Opens the fits file for the given galaxy coordinates, then edits it to make the specific fourier components A1 and phi at radius r petrorads\n",
    "       #Creates a fits file with an ellipse drawn on at r petrosian radii for a given object in the SDSS field specified\n",
    "    #by run, rerun, camcol, field, row, col @ row, col.\n",
    "    #r= Radius (in number of petrosian radiuses) to calculate the fourier coefficient for\n",
    "    #petrorad=the petrosian radius of the object in arcseconds\n",
    "    #expphi = The angle of the exponential fit, expressed as degrees, N through E\n",
    "    #expAB= The ratio of the semi major axes of the disk\n",
    "    # Run, rerun, camcol, field = Specified the SDSS field the object is contained in\n",
    "    # rowf, colf = the pixel coordinates of the centre of the image, in FITS coordinates (ie, first pixel is 1, not zero) \n",
    "    #A1, A0, phi(degrees) - first fourier coefficients\n",
    "    # FITS_directory=Location of folder of fits files\n",
    "    #Open FITS file from disk\n",
    "    try:\n",
    "        #Generate the name the FITS file will be stored under\n",
    "        runstring='0'*(6-len(str(run)))+str(run) \n",
    "        fieldstring='0'*(4-len(str(field)))+str(field)\n",
    "        fitsname='frame-i-'+runstring+'-'+str(camcol)+'-'+fieldstring\n",
    "        #Try to open the fits file. If it throws a filenotfound error, it's because this field hasn't been downloaded yet\n",
    "        file=fits.open(FITS_directory+fitsname+'.fits')\n",
    "    except FileNotFoundError:\n",
    "        #Generate the URL the zipped FITS file will be stored under\n",
    "        fitsurl='http://data.sdss3.org/sas/dr12/boss/photoObj/frames/'+str(rerun)+'/'+str(run)+'/'+str(camcol)+'/'+fitsname+'.fits.bz2'\n",
    "        #Save the zipped FITS file, extract the unzipped fits file\n",
    "        urllib.request.urlretrieve(fitsurl, FITS_directory+fitsname+'.fits.bz2')\n",
    "        f=bz2.open(FITS_directory+fitsname+'.fits.bz2')\n",
    "        #Save the unzipped FITS file to disk\n",
    "        save=fits.open(f)\n",
    "        save.writeto(FITS_directory+fitsname+'.fits')\n",
    "        save.close()\n",
    "        #Remove the zipped file to save space\n",
    "        os.remove(FITS_directory+fitsname+'.fits.bz2')\n",
    "        file=fits.open(FITS_directory+fitsname+'.fits')\n",
    "    image=file[0]\n",
    "    data=image.data\n",
    "    \n",
    "    #Convert centre row and column to python convention (starting at zero), instead of FITS convention(starting at 1)\n",
    "    rowc=rowf-1\n",
    "    colc=colf-1\n",
    "    \n",
    "    \n",
    "    #Get coordinate parameters from header using astropy WCS class. \n",
    "    coords=wcs.WCS(image.header)\n",
    "    \n",
    "    #Checks ra & dec agree with FITS header to within 1 pixel. \n",
    "    checkradec(ra, dec, coords, rowc, colc)\n",
    "    \n",
    "    #Set up sub-function to return row, col pairs for given ra, dec values\n",
    "    def pix(raf,decf):\n",
    "        #Takes values of ra and dec (in degrees). Converts to an array of [row, col] in pixel values\n",
    "        array=coords.all_world2pix(raf,decf,0)\n",
    "        return array[::-1]\n",
    "    \n",
    "\n",
    "    #Get length of semi-major and semi-minor axes of petrosian ellipse. Assume petrosian radius is the geometric mean of a & b. In degrees\n",
    "    a=(2./(1+expab**2))**0.5*petrorad/3600.\n",
    "    b=(2./(1+expab**-2))**0.5*petrorad/3600.\n",
    "    \n",
    "    #Get semi-major and semi-minor axes of the ellipse to calculate the fourier coefficients around. In arcsec\n",
    "    ar=a*r\n",
    "    br=b*r\n",
    "    \n",
    "    \n",
    "    #Create an array of theta values to sample the ellipse at\n",
    "    dtheta=360./3600.\n",
    "    thetas=np.arange(0,360,dtheta)\n",
    "    rs=getrs(thetas, ar, br, expphi)\n",
    "    \n",
    "    def fourier(thetar, An, phi, n):\n",
    "        return An*np.sin(n*(thetar-phi*2*np.pi/360))\n",
    "    #Change value of each pixel in ellipse in ellipselayer\n",
    "    for i in range(len(thetas)):\n",
    "        thetarad=thetas[i]*2*np.pi/360.\n",
    "        #Calculate ra, dec values of target\n",
    "        #First calculate distances from centre\n",
    "        drai=rs[i]*np.sin(thetarad)\n",
    "        ddeci=rs[i]*np.cos(thetarad)\n",
    "        #Then add on coordinates of centre\n",
    "        rai=ra+drai\n",
    "        deci=dec+ddeci\n",
    "        \n",
    "        #Convert to pixels\n",
    "        pixel=pix(rai,deci)\n",
    "        rowi=float(pixel[0])\n",
    "        coli=float(pixel[1])\n",
    "        rowiround=int(round(rowi))\n",
    "        coliround=int(round(coli))\n",
    "        #Sets corresponding pixel to value 2\n",
    "        data[rowiround,coliround]=fourier(thetarad,A1,phi,1)+fourier(thetarad,A2,phi,2)+fourier(thetarad,A3,phi,3)+A0/2.\n",
    "    #Adds the layer to the original fits file and saves as a new fits file with camcol G (for generated) (to differentiate between real and generated fits files)\n",
    "    newfilename='frame-i-'+runstring+'-G'+'-'+fieldstring\n",
    "    file.writeto(FITS_directory+newfilename+'.fits')\n",
    "   \n",
    "    file.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "def a1a0arraycsv(filename, radius):\n",
    "    #Returns a list of A1/A0 values of the galaxies contained in filename at r petrosian radii\n",
    "    #CSV file must have galaxies on each row, with the following column order: ra1, dec1, ra2, dec2, objid, distance, petrorad, expad, expphi,run,rerun,camcol, field, rowc, colc\n",
    "    \n",
    "    #Set up lists to hold data\n",
    "    ras=[]\n",
    "    decs=[]\n",
    "    petrorads=[]\n",
    "    expabs=[]\n",
    "    phis=[]\n",
    "    runs=[]\n",
    "    camcols=[]\n",
    "    fields=[]\n",
    "    rowcs=[]\n",
    "    colcs=[]\n",
    "    with open(filename) as csvfile:\n",
    "        reader = csv.reader(csvfile)\n",
    "        #Gets data on everything except 1st row\n",
    "        colnames=next(reader)\n",
    "        for row in reader:\n",
    "            ras.append(float(row[2]))\n",
    "            decs.append(float(row[3]))\n",
    "            petrorads.append(float(row[6]))\n",
    "            expabs.append(float(row[7]))\n",
    "            phis.append(float(row[8]))\n",
    "            runs.append(row[9])\n",
    "            camcols.append(row[11])\n",
    "            fields.append(row[12])\n",
    "            rowcs.append(float(row[13]))\n",
    "            colcs.append(float(row[14]))\n",
    "    #Open csvwriter for results\n",
    "    with open(filename+'_results','w+') as outputfile:\n",
    "        writer=csv.writer(outputfile)\n",
    "        writer.writerow(['ra','dec']+[k for k in radius])\n",
    "        for i in range(len(ras)):\n",
    "            print(i)\n",
    "            try:\n",
    "                asymmetryallrs=asymmetry(ra=ras[i], dec=decs[i], r=radius, petrorad=petrorads[i], expab=expabs[i], expphi=phis[i], run=runs[i], camcol=camcols[i], field=fields[i], rowf=rowcs[i], colf=colcs[i])\n",
    "                row=[ras[i],decs[i]]+[asymmetryallrs[j][2] for j in range(len(asymmetryallrs))]\n",
    "                writer.writerow(row)\n",
    "            except ValueError as exc:\n",
    "                print(exc)\n",
    "                continue\n",
    "            except IndexError as exc:\n",
    "                #If galaxy is too close to the edge, get index error. In this case, just append the average value of the list so far(important for calculating averages over ranges of radii later)\n",
    "                row=[ras[i],decs[i]]+[asymmetryallrs[j][2] for j in range(len(asymmetryallrs))]\n",
    "                writer.writerow(row)\n",
    "                print(exc)\n",
    "                continue\n"
   ]
  },
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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0\n"
     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "WARNING: FITSFixedWarning: RADECSYS= 'ICRS ' / International Celestial Ref. System \n",
      "the RADECSYS keyword is deprecated, use RADESYSa. [astropy.wcs.wcs]\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
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     ]
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     "output_type": "stream",
     "text": [
      "1932\n",
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      "1960\n",
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      "1961\n",
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      "1968\n",
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      "1970\n",
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      "1972\n",
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      "1981\n",
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      "1983\n",
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      "1984\n",
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      "1985\n",
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      "1986\n",
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      "1987\n",
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      "1988\n",
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      "1989\n",
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      "1990\n",
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      "1991\n",
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      "1992\n",
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      "2005\n",
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      "2009\n",
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      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0070.fits.bz2\n",
      "5636\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0203.fits.bz2\n",
      "5637\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0082.fits.bz2\n",
      "5638\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0064.fits.bz2\n",
      "5639\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0242.fits.bz2\n",
      "5640\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0083.fits.bz2\n",
      "5641\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/6/frame-i-004381-6-0116.fits.bz2\n",
      "5642\n",
      "5643\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/4/frame-i-004381-4-0258.fits.bz2\n",
      "5644\n",
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      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0173.fits.bz2\n",
      "5646\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0179.fits.bz2\n",
      "5647\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0247.fits.bz2\n",
      "5648\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0180.fits.bz2\n",
      "5649\n",
      "5650\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0017.fits.bz2\n",
      "5651\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0253.fits.bz2\n",
      "5652\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/1/frame-i-004382-1-0044.fits.bz2\n",
      "5653\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0076.fits.bz2\n",
      "5654\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0024.fits.bz2\n",
      "5655\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0117.fits.bz2\n",
      "5656\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0119.fits.bz2\n",
      "5657\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4335/2/frame-i-004335-2-0084.fits.bz2\n",
      "5658\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/1/frame-i-004382-1-0035.fits.bz2\n",
      "5659\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/1/frame-i-004381-1-0126.fits.bz2\n",
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      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4380/3/frame-i-004380-3-0113.fits.bz2\n",
      "5664\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/1/frame-i-004382-1-0039.fits.bz2\n",
      "5665\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0052.fits.bz2\n",
      "5666\n",
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      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/6/frame-i-004381-6-0060.fits.bz2\n",
      "index 1489 is out of bounds for axis 0 with size 1489\n",
      "5668\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0160.fits.bz2\n",
      "5669\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/1/frame-i-004382-1-0040.fits.bz2\n",
      "5670\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/6/frame-i-004381-6-0262.fits.bz2\n",
      "5671\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/6/frame-i-004381-6-0164.fits.bz2\n",
      "5672\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4380/2/frame-i-004380-2-0083.fits.bz2\n",
      "5673\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/3/frame-i-004381-3-0211.fits.bz2\n",
      "5674\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0101.fits.bz2\n",
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      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/3/frame-i-004382-3-0038.fits.bz2\n",
      "5676\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0166.fits.bz2\n",
      "5677\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0138.fits.bz2\n",
      "5678\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/3/frame-i-004382-3-0042.fits.bz2\n",
      "5679\n",
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      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4382/3/frame-i-004382-3-0045.fits.bz2\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5681\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0113.fits.bz2\n",
      "5682\n",
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      "5683\n",
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      "5685\n",
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      "5686\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4380/3/frame-i-004380-3-0087.fits.bz2\n",
      "5687\n",
      "5688\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0198.fits.bz2\n",
      "5689\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4381/5/frame-i-004381-5-0199.fits.bz2\n"
     ]
    },
    {
     "ename": "KeyboardInterrupt",
     "evalue": "",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
      "\u001b[0;32m<ipython-input-15-6d72571aea21>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0mrtoprobe\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mnp\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0marange\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m0.05\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m1.3\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m0.01\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0ma1a0arraycsv\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'Downloads/Data_for_asymetry4_aa2811_run5.csv'\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mrtoprobe\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[0;32m<ipython-input-10-8a5877fdd811>\u001b[0m in \u001b[0;36ma1a0arraycsv\u001b[0;34m(filename, radius)\u001b[0m\n\u001b[1;32m     36\u001b[0m             \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     37\u001b[0m             \u001b[0;32mtry\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 38\u001b[0;31m                 \u001b[0masymmetryallrs\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0masymmetry\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mra\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mras\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mdec\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mdecs\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mr\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mradius\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mpetrorad\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mpetrorads\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mexpab\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mexpabs\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mexpphi\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mphis\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mrun\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mruns\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcamcol\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mcamcols\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mfield\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mfields\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mrowf\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mrowcs\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcolf\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mcolcs\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     39\u001b[0m                 \u001b[0mrow\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mras\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mdecs\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m+\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0masymmetryallrs\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mj\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m2\u001b[0m\u001b[0;34m]\u001b[0m \u001b[0;32mfor\u001b[0m \u001b[0mj\u001b[0m \u001b[0;32min\u001b[0m \u001b[0mrange\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mlen\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0masymmetryallrs\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     40\u001b[0m                 \u001b[0mwriter\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mwriterow\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mrow\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m<ipython-input-9-002756383735>\u001b[0m in \u001b[0;36masymmetry\u001b[0;34m(ra, dec, r, petrorad, expab, expphi, run, camcol, field, rowf, colf, FITS_directory, rerun)\u001b[0m\n\u001b[1;32m     85\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     86\u001b[0m             \u001b[0;31m#Convert to pixels\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 87\u001b[0;31m             \u001b[0mpixel\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mpix\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mrai\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mdeci\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     88\u001b[0m             \u001b[0mrowi\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mfloat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mpixel\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m0\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     89\u001b[0m             \u001b[0mcoli\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mfloat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mpixel\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m1\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m<ipython-input-9-002756383735>\u001b[0m in \u001b[0;36mpix\u001b[0;34m(raf, decf)\u001b[0m\n\u001b[1;32m     52\u001b[0m     \u001b[0;32mdef\u001b[0m \u001b[0mpix\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mraf\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mdecf\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     53\u001b[0m         \u001b[0;31m#Takes values of ra and dec (in degrees). Converts to an array of [row, col] in pixel values\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 54\u001b[0;31m         \u001b[0marray\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mcoords\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mall_world2pix\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mraf\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mdecf\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m0\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     55\u001b[0m         \u001b[0;32mreturn\u001b[0m \u001b[0marray\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m-\u001b[0m\u001b[0;36m1\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     56\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m~/anaconda3/lib/python3.6/site-packages/astropy/wcs/wcs.py\u001b[0m in \u001b[0;36mall_world2pix\u001b[0;34m(self, *args, **kwargs)\u001b[0m\n\u001b[1;32m   1831\u001b[0m                 \u001b[0madaptive\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0madaptive\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mdetect_divergence\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mdetect_div\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1832\u001b[0m                 quiet=quiet),\n\u001b[0;32m-> 1833\u001b[0;31m             \u001b[0;34m'input'\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m*\u001b[0m\u001b[0margs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m**\u001b[0m\u001b[0mkwargs\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m   1834\u001b[0m         )\n\u001b[1;32m   1835\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m~/anaconda3/lib/python3.6/site-packages/astropy/wcs/wcs.py\u001b[0m in \u001b[0;36m_array_converter\u001b[0;34m(self, func, sky, *args, **kwargs)\u001b[0m\n\u001b[1;32m   1268\u001b[0m                     \"a 1-D array for each axis, followed by an origin.\")\n\u001b[1;32m   1269\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m-> 1270\u001b[0;31m             \u001b[0;32mreturn\u001b[0m \u001b[0m_return_list_of_arrays\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0maxes\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0morigin\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m   1271\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1272\u001b[0m         raise TypeError(\n",
      "\u001b[0;32m~/anaconda3/lib/python3.6/site-packages/astropy/wcs/wcs.py\u001b[0m in \u001b[0;36m_return_list_of_arrays\u001b[0;34m(axes, origin)\u001b[0m\n\u001b[1;32m   1224\u001b[0m             \u001b[0;32mif\u001b[0m \u001b[0mra_dec_order\u001b[0m \u001b[0;32mand\u001b[0m \u001b[0msky\u001b[0m \u001b[0;34m==\u001b[0m \u001b[0;34m'input'\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1225\u001b[0m                 \u001b[0mxy\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m_denormalize_sky\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mxy\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m-> 1226\u001b[0;31m             \u001b[0moutput\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mfunc\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mxy\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0morigin\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m   1227\u001b[0m             \u001b[0;32mif\u001b[0m \u001b[0mra_dec_order\u001b[0m \u001b[0;32mand\u001b[0m \u001b[0msky\u001b[0m \u001b[0;34m==\u001b[0m \u001b[0;34m'output'\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1228\u001b[0m                 \u001b[0moutput\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m_normalize_sky\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0moutput\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m~/anaconda3/lib/python3.6/site-packages/astropy/wcs/wcs.py\u001b[0m in \u001b[0;36m<lambda>\u001b[0;34m(*args, **kwargs)\u001b[0m\n\u001b[1;32m   1826\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1827\u001b[0m         return self._array_converter(\n\u001b[0;32m-> 1828\u001b[0;31m             \u001b[0;32mlambda\u001b[0m \u001b[0;34m*\u001b[0m\u001b[0margs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m**\u001b[0m\u001b[0mkwargs\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m   1829\u001b[0m             self._all_world2pix(\n\u001b[1;32m   1830\u001b[0m                 \u001b[0;34m*\u001b[0m\u001b[0margs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtolerance\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mtolerance\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mmaxiter\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mmaxiter\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;31mKeyboardInterrupt\u001b[0m: "
     ]
    }
   ],
   "source": [
    "rtoprobe=np.arange(0.05,1.3,0.01)\n",
    "a1a0arraycsv('Downloads/Data_for_asymetry4_aa2811_run5.csv',rtoprobe)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0\n",
      "Downloading from  http://data.sdss3.org/sas/dr12/boss/photoObj/frames/301/4512/2/frame-i-004512-2-0125.fits.bz2\n"
     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "WARNING: FITSFixedWarning: RADECSYS= 'ICRS ' / International Celestial Ref. System \n",
      "the RADECSYS keyword is deprecated, use RADESYSa. [astropy.wcs.wcs]\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1\n",
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     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "WARNING: FITSFixedWarning: 'datfix' made the change 'Changed '22/03/99' to '1999-03-22''. [astropy.wcs.wcs]\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
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      "WARNING: FITSFixedWarning: 'datfix' made the change 'Changed '21/03/99' to '1999-03-21''. [astropy.wcs.wcs]\n"
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    }
   ],
   "source": [
    "rtoprobe=np.arange(0.05,1.3,0.01)\n",
    "a1a0arraycsv('Downloads/Offset_bar_data_for_asymmetry_aa2811.csv',rtoprobe)\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
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     "output_type": "stream",
     "text": [
      "0\n"
     ]
    },
    {
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     "output_type": "stream",
     "text": [
      "WARNING: FITSFixedWarning: RADECSYS= 'ICRS ' / International Celestial Ref. System \n",
      "the RADECSYS keyword is deprecated, use RADESYSa. [astropy.wcs.wcs]\n",
      "WARNING: FITSFixedWarning: 'datfix' made the change 'Changed '22/09/98' to '1998-09-22''. [astropy.wcs.wcs]\n"
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     ]
    }
   ],
   "source": [
    "a1a0arraycsv('Downloads/Disk_sample635_aa2811.csv', rtoprobe)\n",
    "a1a0arraycsv('Downloads/Elliptical_Data_for_asymetry4_aa2811.csv', rtoprobe)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
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