Search found 215 matches

by ste616
Tue Jul 11, 2023 10:29 am
Forum: Calibration
Topic: Flux and bandpass calibration using secondary following block drop
Replies: 2
Views: 3954

Re: Flux and bandpass calibration using secondary following block drop

Hi Gemma,

I should note that unless you did an acal after you recovered from the block drop, and if you kept the tvchannels the same before and after the drop, then you might not need to do anything special.
by ste616
Tue Dec 07, 2021 2:58 pm
Forum: My ATCA
Topic: Observation table in OPAL
Replies: 4
Views: 23166

Re: Observation table in OPAL

Hi Steve, Sorry this is not working for you. I can't replicate this on my end. I think to progress I may need to see your observations table file, in case there is a problem with the combination of what you've got in there and the OPAL system. Could you please send me (via email, Jamie.Stevens at cs...
by ste616
Mon Dec 06, 2021 8:34 am
Forum: My ATCA
Topic: Observation table in OPAL
Replies: 4
Views: 23166

Re: Observation table in OPAL

Hi Steve,

With Chrome 96.0.4664.45 on Ubuntu I was able to create and successfully save an OXML observations table just before replying, from https://opal.atnf.csiro.au.

Could you please elaborate on your process and configuration?
by ste616
Fri Feb 21, 2020 11:54 am
Forum: MIRIAD
Topic: stokes V imaging
Replies: 8
Views: 11406

Re: stokes V imaging

Hi Rami, I would also suggest you read Thompson, Moran and Swenson 3rd edition section 4.7 about polarimetry. https://link.springer.com/chapter/10.1007/978-3-319-44431-4_4 Towards the end it gives some useful advice regarding this situation (in 4.7.5): With linearly polarized antennas, errors in cal...
by ste616
Wed Feb 12, 2020 1:36 pm
Forum: MIRIAD
Topic: How do you find the total time on source?
Replies: 3
Views: 9008

Re: How do you find the total time on source?

Hi Nick, My recommendation is to use the task uvfstats. What you are after is the number of unflagged correlations in a single IF, on a single baseline, for a single pol, in a single channel. Multiplying this by the cycle time (assuming it's constant over the duration of all the correlations) will r...
by ste616
Wed Dec 04, 2019 8:54 am
Forum: Other Tools
Topic: mirpy
Replies: 10
Views: 55045

Re: mirpy

Hi Brodie, I'm afraid I cannot replicate your issue. With code virtually identical to yours, using Python 2.7, I get no TypeError: # This is test.py from mirpy import miriad def atlod_filter(output): return output.split('\n') ddir='/home/ste616/Work/CX424/*.CX424' miriad.set_filter('atlod', atlod_fi...
by ste616
Tue Dec 03, 2019 4:03 pm
Forum: Other Tools
Topic: mirpy
Replies: 10
Views: 55045

Re: mirpy

Hi Brodie, What exactly are you trying to get from the "atload_filter" routine? The "decode" method seems to attach to a byte object, not a string, which would explain why you're getting the errors you are. If all you're trying to do is get a list of the lines output from atlod, ...
by ste616
Tue Dec 03, 2019 3:33 pm
Forum: Other Tools
Topic: mirpy
Replies: 10
Views: 55045

Re: mirpy

You are misspelling "atlod" as "atload" in your call to set_filter. I don't know if this is the problem that you were experiencing originally, but given we should assume that mirpy does support Python 3, it's a possibility.

Could you please show the entire script?
by ste616
Tue Dec 03, 2019 3:02 pm
Forum: Other Tools
Topic: mirpy
Replies: 10
Views: 55045

Re: mirpy

Hi Brodie,

Does mirpy actually support Python 3? I've never tried. Could you try your exact same steps in 2.7 and see if the problem is the same?
by ste616
Fri Jun 21, 2019 11:51 am
Forum: Imaging
Topic: Region selection in cgdisp
Replies: 3
Views: 6865

Re: Region selection in cgdisp

Yes.