https://github.com/RadioAstronomySoftwareGroup/pyuvdata
Tip revision: 65953f8e68a84a821c75ff1ec8fe3bcc512573fc authored by Nicholas Kern on 24 July 2018, 02:16:45 UTC
check phsae_type == drift in miriad_to_uvfits.py before phasing
check phsae_type == drift in miriad_to_uvfits.py before phasing
Tip revision: 65953f8
miriad_to_uvfits.py
#!/usr/bin/env python
# -*- mode: python; coding: utf-8 -*
# Copyright (c) 2018 Radio Astronomy Software Group
# Licensed under the 2-clause BSD License
"""
A command-line script for converting
a Miriad file to UVFITS format
"""
from __future__ import absolute_import, division, print_function
import argparse
import sys
import os
import pyuvdata
from astropy.time import Time
# setup argparse
a = argparse.ArgumentParser(description="A command-line script for converting a Miriad file to UVFITS format.")
a.add_argument("files", type=str, nargs='*', help="Miriad files to convert to uvfits.")
a.add_argument("--phase_time", type=float, default=None, help="Julian Date to phase data to. Default is the first integration of the file.")
a.add_argument("--overwrite", default=False, action='store_true', help="overwrite output file if it already exists.")
a.add_argument("--verbose", default=False, action='store_true', help="report feedback to stdout.")
# get args
args = a.parse_args()
history = ' '.join(sys.argv)
# iterate over files
for filename in args.files:
# check output
outfilename = filename + '.uvfits'
if os.path.exists(outfilename) and args.overwrite is False:
print("{} exists, not overwriting...".format(outfilename))
continue
# read in file
UV = pyuvdata.UVData()
UV.read_miriad(filename)
if UV.phase_type == 'drift':
# phase data
if args.phase_time is not None:
UV.phase_to_time(Time(args.phase_time, format='jd', scale='utc'))
if args.verbose:
print("phasing {} to time {}".format(filename, args.phase_time))
else:
UV.phase_to_time(Time(UV.time_array[0], format='jd', scale='utc'))
if args.verbose:
print("phasing {} to time {}".format(filename, UV.time_array[0]))
# write data
UV.history += history
if args.verbose:
print("saving {}".format(outfilename))
UV.write_uvfits(outfilename, spoof_nonessential=True)