https://www.jive.eu/jivewiki/ 2026-04-12T04:29:01+00:00 https://www.jive.eu/jivewiki/ https://www.jive.eu/jivewiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2007-07-09T15:19:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:apply_ai_table_to_cl_table&rev=1183994381&do=diff function: apply_AI_table_to_CL_table ################################################################################ # Find the upper and lower indices for interpolating in the AI table def apply_AI_table_to_CL_table(aips_data, AI_version, gainver, gainuse, interpolation_method, overwrite=0): """Find the upper and lower indices for interpolating in the AI table aips_data I an AIPS uv dataset (standard, not Wizardry) … text/html 2007-07-09T15:14:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:get_small_source_stats_main&rev=1183994079&do=diff function: get_small_source_stats_main def get_small_source_stats_main(aips_image, \ source_radius, noise_inner_radius, \ noise_outer_radius, edge_width=10, \ print_level=1): """User version for statistis from an image for a \"small\" source. This function takes an AIPSImage, and returns physical (Jy/beam and Jy) values. Note that the returned position is a C position!!! This funct… text/html 2012-11-27T10:39:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:grimoire&rev=1354012750&do=diff The Parseltongue Grimoire Ionospheric Calibration James M Anderson, 18 January 2006 Here are some scripts related to my Ionospheric Calibration work. This file is being used to do the main calibration of my N05L2 EVN test observations for the ionosphere. It was developed before Cormac really began work on developing the ParselTongue EVN pipeline, so you should check out Cormac's stuff to see a more refined pipeline system for the EVN. text/html 2024-10-15T15:36:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:parseltongue&rev=1729006594&do=diff The Parseltongue Wiki ParselTongue is a Python interface to classic AIPS, Obit and possibly other task-based data reduction packages. It serves as the software infrastructure for some of the ALBUS implementation. It allows you to run AIPS tasks, and access AIPS headers and extension tables from Python. There is also support for running Obit tasks and accessing data in FITS files. Full access to the visibilities in AIPS UV data is also available. text/html 2009-03-13T13:10:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:parseltongue_faq&rev=1236949831&do=diff Parseltongue FAQ I have created this page for people to ask questions regarding parseltongue, please feel free to post comments. How do you clear the status of all files in a catalogue? It is possible to delete the contents of a catalogue with AIPSCat().zap(), but this will only work if text/html 2007-07-09T14:23:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:phaseplot&rev=1183991028&do=diff Plot of the phase for a single channel And here is a script that makes a plot of the phase for a single channel on a randomly chosen baseline: from Wizardry.AIPSData import AIPSUVData from AIPS import AIPS from pylab import plot, show from math import atan2 AIPS.userno = 3601 data = AIPSUVData('MULTI', 'UVDATA', 1, 3) phase = [] time = [] for visibility in data: if visibility.baseline == [1, 2]: re = visibility.visibility[0, 0, 0, 0] im = visibility.visibility[0, 0, 0, … text/html 2007-07-09T15:16:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:process_phase_reference_data&rev=1183994203&do=diff function: process_phase_reference_data ################################################################################ # Process Phase Referencing Data def process_phase_reference_data(aips_uvdata, PhaseReferencingInfoDict): """Runs through the list of phase referencing observations to make images """ # make sure the argument is a list if(type(PhaseReferencingInfoDict) != type([0])): PhaseReferencingInfoDict = [PhaseReferencingInfoDict] # declare some local variabl… text/html 2008-09-17T07:39:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:sault-wieringa_algorithm&rev=1221637159&do=diff Sault-Wieringa algorithm This page is for the development and testing of the Sault-Wieringa algorithm, within aperture synthesis. The Sault-Wieringa algorithm is a technique of using measurements at several observing frequencies when forming an image in radio interferometric aperture synthesis. text/html 2007-07-09T15:14:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:self_cal_source&rev=1183994060&do=diff function: self_cal_source ################################################################################ # Run a series of IMAGR clean and CALIB self-cal's on a Single Source Dataset def self_cal_source(aips_data, source_name='', flagver = 0, bpver = -1, refant = 1, timerange=[0,0,0,0], imsize = 512, cellsize=1, robust=8, … text/html 2007-07-09T14:20:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.jive.eu/jivewiki/doku.php?id=parseltongue:uvcoverage&rev=1183990844&do=diff UV coverage plot It’s also possible to get at the actual visibilities in a UV data set. Here is a little script that uses matplotlib to make a UV coverage plot: from Wizardry.AIPSData import AIPSUVData from AIPS import AIPS from pylab import plot, show AIPS.userno = 667 data = AIPSUVData('MULTI', 'UVDATA', 1, 3) u = [] v = [] for visibility in data: u.append(visibility.uvw[0]) v.append(visibility.uvw[1]) plot(u, v, '.') show()