94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
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#!/usr/bin/env python
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from __future__ import print_function
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import configparser
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import argparse
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from spacetrack import SpaceTrackClient
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import subprocess
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from shutil import copyfile
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import datetime
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from io import BytesIO
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from zipfile import ZipFile
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from urllib.request import urlopen
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if __name__ == '__main__':
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# Read commandline options
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conf_parser = argparse.ArgumentParser(description='Update TLEs from' +
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' online sources')
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conf_parser.add_argument("-c", "--conf_file",
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help="Specify configuration file. If no file" +
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" is specified 'configuration.ini' is used.",
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metavar="FILE")
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args = conf_parser.parse_args()
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# Process commandline options and parse configuration
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cfg = configparser.ConfigParser(inline_comment_prefixes=('#', ';'))
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if args.conf_file:
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cfg.read([args.conf_file])
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else:
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cfg.read('configuration.ini')
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tle_path = cfg.get('Common', 'tle_path')
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now = datetime.datetime.utcnow()
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time = now.strftime("%Y-%m-%d_%H:%M:%S")
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# Get Space Track TLEs
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catalog_tle = tle_path + 'catalog.tle'
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st = SpaceTrackClient(identity=cfg.get('Credentials', 'st-username'),
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password=cfg.get('Credentials', 'st-password'))
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data = st.tle_latest(iter_lines=True, epoch='>now-30',
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ordinal=1, format='3le')
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with open(catalog_tle, 'w') as fp:
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for line in data:
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fp.write(line + '\n')
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subprocess.call(['sed -i -e "s/^1 /1 0000/g" -e "s/^2 /2 0000/g" -e "s/^1 ' +
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' /1 000/g" -e "s/^2 /2 000/g" -e "s/^1 /1 00/g" -e "s/^2 ' +
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' /2 00/g" -e "s/^1 /1 0/g" -e "s/^2 /2 0/g" ' + catalog_tle], shell=True)
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copyfile(catalog_tle, tle_path + time + '_catalog.txt')
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# Get classified TLEs
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resp = urlopen("http://www.prismnet.com/~mmccants/tles/classfd.zip")
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zipfile = ZipFile(BytesIO(resp.read()))
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zipfile.extractall(path=tle_path)
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classfd_tle = tle_path + 'classfd.tle'
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content = ''
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outsize = 0
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with open(classfd_tle, 'rb') as infile:
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content = infile.read()
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with open(classfd_tle, 'wb') as output:
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for line in content.splitlines():
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outsize += len(line) + 1
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output.write(line + b'\n')
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copyfile(classfd_tle, tle_path + time + '_classfd.txt')
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# Get int TLEs
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resp = urlopen("http://www.prismnet.com/~mmccants/tles/inttles.zip")
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zipfile = ZipFile(BytesIO(resp.read()))
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zipfile.extractall(path=tle_path)
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int_tle = tle_path + 'inttles.tle'
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content = ''
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outsize = 0
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with open(int_tle, 'rb') as infile:
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content = infile.read()
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with open(int_tle, 'wb') as output:
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for line in content.splitlines():
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outsize += len(line) + 1
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output.write(line + b'\n')
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copyfile(int_tle, tle_path + time + '_inttles.txt')
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# Create bulk catalog
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catalogs = [catalog_tle, classfd_tle]
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with open(tle_path + 'bulk.tle', 'w') as outfile:
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for fname in catalogs:
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with open(fname) as infile:
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outfile.write(infile.read())
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