Search found 45 matches

by bnorfolk
Tue Dec 03, 2019 3:18 pm
Forum: Other Tools
Topic: mirpy
Replies: 10
Views: 59035

Re: mirpy

Hi,

The github https://github.com/radio-astro/mirpy states py3 compatibility.

When setting up a conda environment with python 2.7 and using pip to install mirpy I get the the error that the module doesn't have the attribute atlod or set_filter.

Cheers,
by bnorfolk
Tue Dec 03, 2019 2:09 pm
Forum: Other Tools
Topic: mirpy
Replies: 10
Views: 59035

Re: mirpy

Hi, I'm attempting to use atlod in mirpy and I'm running into many issues. My current execution is detailed in the figure. Now I've tried the filter: def atload_filter(output): return output.decode() miriad.set_filter(‘atload’, atload_filter) But I get an AssertionError with not details. Any help wo...
by bnorfolk
Wed Nov 27, 2019 8:25 am
Forum: Calibration
Topic: Non detection and beam elongation issue
Replies: 2
Views: 7527

Re: Non detection and beam elongation issue

Hi Mark,

Thanks for the reply, it was the 6A configuration.

Cheers,
by bnorfolk
Tue Nov 26, 2019 1:09 pm
Forum: Calibration
Topic: Non detection and beam elongation issue
Replies: 2
Views: 7527

Non detection and beam elongation issue

Hi, I'm getting a weirdly elongated beam from my reduction, and a corresponding non detection. The ra and dec for my source is: 05 16 00.4764811920 -09 48 35.394685295 I'm finding this very strange because: (1) The weather was great (image attached) (2) The elevation for the majority of the observat...
by bnorfolk
Thu Aug 22, 2019 2:55 pm
Forum: Imaging
Topic: Centering the target
Replies: 2
Views: 7038

Re: Centering the target

Hi Mark, Thanks for the reply, I believe I've shifted correctly. So looking at the image attached, it has the star centred on a two sigma detection (adjusted with gaia proper motions) but there's a 4 sigma detection below. How do I use two phase calibrators to check position errors to see if this 4 ...
by bnorfolk
Mon Aug 19, 2019 5:07 pm
Forum: Imaging
Topic: Centering the target
Replies: 2
Views: 7038

Centering the target

Hi, I'm attempting to centre my targets for imaging purposes and I'm having some issues. I've been correcting the RA and DEC with the proper motion of my targets (for targets with recent gaia measurements) and centering on the new RA and DEC with a variety of results. Some targets centre accurately,...
by bnorfolk
Thu Aug 15, 2019 11:30 am
Forum: Calibration
Topic: 33GHz flux discrepancy
Replies: 3
Views: 8182

Re: 33GHz flux discrepancy

Hi Mark, Thanks for the reply. A few questions, (1) From previous forum posts I discovered it's unnecessary to RFI flag on 7mm data, but for cases like this I would need too? And in that case I'd want to use: pgflag vis=visfile stokes=xx,yy device=/xs and command=<b for the RFI automatic flagging? (...
by bnorfolk
Wed Aug 14, 2019 1:02 pm
Forum: Calibration
Topic: 33GHz flux discrepancy
Replies: 3
Views: 8182

33GHz flux discrepancy

Hi, I've reduced 7mm observations (6A config) and have attempted to image the result. The obs had nice weather with an average seemon rms of 150. Before I uvcat the 33GHz and 35GHz vis files into a 34GHz file I image each separately. For natural weighting, the 35GHz vis data produces an expected ima...
by bnorfolk
Tue Aug 06, 2019 3:04 pm
Forum: Imaging
Topic: CLEAN iterations
Replies: 8
Views: 9544

Re: CLEAN iterations

Great thanks again!
by bnorfolk
Mon Aug 05, 2019 6:28 pm
Forum: Imaging
Topic: IMFIT vs UVFIT
Replies: 10
Views: 13555

Re: IMFIT vs UVFIT

Hi Mark,

I've implemented the fwhm parameter into invert for some of my faint sources. I received a higher peak flux but also a higher rms, and subsequently a lower S/N. Does this suggest my former method produced a more accurate reading? Or can I trust this higher flux reading?

Cheers,
Brodie