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- {
- "cells": [
- {
- "cell_type": "code",
- "execution_count": 2,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "from astropy.io import fits"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 3,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "import numpy as np"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 4,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "data = np.arange(100).reshape(10, 10)"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 5,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "prihdu = fits.PrimaryHDU()"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 6,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "prihdu.header['mykey'] = 'somevalue'"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 7,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "imhdu = fits.ImageHDU(data)"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 9,
- "metadata": {},
- "outputs": [],
- "source": [
- "hdulist = fits.HDUList([prihdu, imhdu])"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 10,
- "metadata": {},
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "Filename: (No file associated with this HDUList)\n",
- "No. Name Ver Type Cards Dimensions Format\n",
- " 0 PRIMARY 1 PrimaryHDU 5 () \n",
- " 1 1 ImageHDU 7 (10, 10) int64 \n"
- ]
- }
- ],
- "source": [
- "hdulist.info()"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 11,
- "metadata": {},
- "outputs": [
- {
- "data": {
- "text/plain": [
- "SIMPLE = T / conforms to FITS standard \n",
- "BITPIX = 8 / array data type \n",
- "NAXIS = 0 / number of array dimensions \n",
- "EXTEND = T \n",
- "MYKEY = 'somevalue' "
- ]
- },
- "execution_count": 11,
- "metadata": {},
- "output_type": "execute_result"
- }
- ],
- "source": [
- "hdulist[0].header"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 12,
- "metadata": {},
- "outputs": [
- {
- "data": {
- "text/plain": [
- "array([[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9],\n",
- " [10, 11, 12, 13, 14, 15, 16, 17, 18, 19],\n",
- " [20, 21, 22, 23, 24, 25, 26, 27, 28, 29],\n",
- " [30, 31, 32, 33, 34, 35, 36, 37, 38, 39],\n",
- " [40, 41, 42, 43, 44, 45, 46, 47, 48, 49],\n",
- " [50, 51, 52, 53, 54, 55, 56, 57, 58, 59],\n",
- " [60, 61, 62, 63, 64, 65, 66, 67, 68, 69],\n",
- " [70, 71, 72, 73, 74, 75, 76, 77, 78, 79],\n",
- " [80, 81, 82, 83, 84, 85, 86, 87, 88, 89],\n",
- " [90, 91, 92, 93, 94, 95, 96, 97, 98, 99]])"
- ]
- },
- "execution_count": 12,
- "metadata": {},
- "output_type": "execute_result"
- }
- ],
- "source": [
- "hdulist[1].data"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 13,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": [
- "hdulist.writeto('myimage.fits', overwrite=True)"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "metadata": {
- "collapsed": true
- },
- "outputs": [],
- "source": []
- }
- ],
- "metadata": {
- "kernelspec": {
- "display_name": "Python 3",
- "language": "python",
- "name": "python3"
- },
- "language_info": {
- "codemirror_mode": {
- "name": "ipython",
- "version": 3
- },
- "file_extension": ".py",
- "mimetype": "text/x-python",
- "name": "python",
- "nbconvert_exporter": "python",
- "pygments_lexer": "ipython3",
- "version": "3.6.5"
- }
- },
- "nbformat": 4,
- "nbformat_minor": 2
- }
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