def __init__(self, opts, correlator=None):
user_logger.info("Setting up telescope for observation")
self.opts = opts
# unpack user specified correlator setup values
if correlator is not None:
correlator_config = read_yaml(correlator)
self.feng = correlator_config["Fengine"]
self.xeng = correlator_config["Xengine"]
self.beng = correlator_config["Bengine"]
else:
self.feng = self.xeng = self.beng = None
# Check options and build KAT configuration,
# connecting to proxies and devices
# create single kat object, cannot repeatedly recreate
self.array = verify_and_connect(opts)
type="int",
default=2,
help="number of offset sources to scan (default=%default)")
# Set default value for any option (both standard and experiment-specific options)
parser.set_defaults(description='Radial holography scan', nd_params='off')
# Parse the command line
opts, args = parser.parse_args()
if len(args) == 0:
raise ValueError(
"Please specify at least one target argument via name ('Cygnus A'), "
"description ('azel, 20, 30') or catalogue file name ('sources.csv')")
# Check basic command-line options and obtain a kat object connected to the appropriate system
with verify_and_connect(opts) as kat:
targets = collect_targets(kat, args)
# Initialise a capturing session (which typically opens an HDF5 file)
with start_session(kat, **vars(opts)) as session:
# Use the command-line options to set up the system
session.standard_setup(**vars(opts))
if not opts.no_delays and not kat.dry_run:
if session.dbe.req.auto_delay('on'):
user_logger.info("Turning on delay tracking.")
else:
user_logger.error('Unable to turn on delay tracking.')
elif opts.no_delays and not kat.dry_run:
if session.dbe.req.auto_delay('off'):
user_logger.info("Turning off delay tracking.")
else:
