pysynphot_bug.ipynb

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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Populating the interactive namespace from numpy and matplotlib\n"
     ]
    }
   ],
   "source": [
    "%pylab inline --no-import-all"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from astropy.io import fits\n",
    "import pysynphot"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "f115w_hdul = fits.open('/grp/jwst/ote/webbpsf-data/NIRISS/filters/F115W_throughput.fits')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
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   "outputs": [],
   "source": [
    "f115w = f115w_hdul[1].data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "band = pysynphot.spectrum.ArraySpectralElement(\n",
    "    throughput=f115w.THROUGHPUT,\n",
    "    wave=f115w.WAVELENGTH,\n",
    "    waveunits='angstrom',\n",
    "    name='F115W'\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
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   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5000.0\n"
     ]
    }
   ],
   "source": [
    "print np.min(band.wave)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "micron\n",
      "0.5\n"
     ]
    }
   ],
   "source": [
    "band.convert('um')\n",
    "print band.waveunits\n",
    "print np.min(band.wave)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "wl = band.wave\n",
    "thru = band.throughput"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "angstrom\n",
      "5000.0\n"
     ]
    }
   ],
   "source": [
    "print band.waveunits\n",
    "print np.min(band.wave)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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