GMVA SEFD updates

This version only updates the SEFD values for most of the GMVA antennas at 3 mm.

Minor update

v4.1.3 broke the graphical module as I incorporated some of the typing features that were not available yet in Python 3.8. I took this code back to make it working in such ancient version (still required until PlanObs v2.0 due to deprecations in the Dash module).

Fixing minor installation errors

v4.1.2

Updated version to correct 4.1.2

v4.1.1

Minor update that removes the warning messages in the stdout when computing the output for an observation that does not have set the target source or observing time.
This follows the previous update where even in these cases one can get some useful output and thus the aforementioned messages can provide an extensive output for a supported configuration.

Export PDF

A new option to download a summary of the observation in PDF has been added, and is visible under the "summary" tab.

Dynamic scheduling

A new mode has been implemented: the possibility of computing an observation without specifying a target source or the observing epoch. This allows to get an estimate for the observation even when the source is not known (e.g. for transient proposals), and when the epoch is not known (e.g. for dynamic scheduling).

Then now it has three options for the epoch and source:

• Do not specify source nor epoch: Only the total duration of the observation needs to be specified. No elevation plots will be provided and the uv coverage and resolution are estimated assuming that all selected antennas will observe all the time and the source may have a declination of about +/- 45 degrees.
• Find epoch for given source: Only the target source needs to be specified. It will determine the observing times that will allow at least >3 antennas to observe the source. Therefore it helps the user to determine the best times (UT and GST) to observe the source with the given array.
• Define source and epoch: All parameters needs to be specified: the target source, the observing epoch, and the duration of the observation.

VERA+KaVA and bug fixes

In these release we have added the VERA and KaVA VLBI arrays. Thanks to M. Giroletti (and co.) for providing the SEFDs for the VERA antennas.
Plus some bug fixes:

• Out-of-bound error when creating the dirty maps in some specific cases.
• Wrong number of returned elements in the GUI when some exceptions were raised.

More stability

Stations have now additional checks when created to be sure that all parameters are consistent with values that are expected/reasonable.
The GUI interface also catches any possible running issue (there were some specific uncaught exceptions e.g. source coordinates with a >90 degrees declination value).

World Map

A world map has been added under the summary section in the GUI, showing the location of the participating antennas.
Some minor wording and CSS fixes have been implemented for a more consistent GUI, specially under small screens.

Now with dirty beams

New features:

• Dirty beams with natural and uniform weighting are now shown under the "UV coverage" tab, or provided from "Observation".
• Improved readability of GST times in summary and plots (shown when data selected in source visibility plot).

Antennas added:

• Arecibo 12-m.
• MeerKAT (single dish and phased array).
• Full SKA 1 MID.

Bug fixes:

• Synthesized beam in summary now shows the same orientation as expected in the sky (previously inverted in xaxis).