CenA Gold Observation

As part of the MWAX new correlator development and testing, an observation was taken using both the MWAX correlator and the existing MWA correlator.

Observation: 1244973688

Obs ID: 1244973688

View MWA Correlator observation info

MWA and MWAX correlator mode:

Frequency averaging: 10 kHz
Integration time: 1 second

Even though the array was in long baseline mode, we decided to take the observation in a mode which both correlators support. MWA normally runs at 0.5 sec integration time, however MWAX supports 0.4 or 0.6 seconds. So it was decided in the interest of comparing like with like to run both at the next best setting they have in common: 1 second integration times.

Observation duration:

MWA: 120 seconds
MWAX: first 40 seconds

Channel selection comparison:

Receiver Channel #	MWA Coarse Channel #	MWAX Coarse Channel #
112	9	1
113	10	2
114	11	3
115	12	4
116	13	5
117	14	6

Data Access:

Download MWA observation via MWA ASVO: click here (24 coarse channels, metafits)

Download MWAX data from HTTP server at Curtin: click here (6 coarse channel fits files and a 'doctored metafits to be consistent with 6 coarse channels and only 40 second duration)

NOTE:

The new MWAX correlator was only configured to capture the first 40 seconds of this observation (the MWA correlator would have 120 seconds) and only 6 coarse channels (the equivalent of MWA gpubox09,10,11,12,13,14).

See the following articles for information on ordering of data and fits format:

MWAX Visibility File Format

MWAX Antenna Ordering