LOFAR target visibility calculator

• For a given target, this calculator displays its visibility and elevation over a 24hr period at a date set by the user.
• The default minimum elevation is 20 degrees, it can be modified by the user.
• The user can select to display the visibility of the LOFAR standard calibrator sources, some solar system targets and some of the brightest radio sources on the sky (the A team).
• The plotted graphics can be manupilated using the pan and zoom controls in the plot menu.
• The angular distance between any selected sources and the target is shown at the bottom of the page.