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HartRAO 26m telescope observing modes

The HartRAO 26m radio telescope is used for astronomical, astrometric and geodetic Very Long Baseline Interferometry (VLBI).

Proposals for Astronomical VLBI should be submitted to the radio telescope networks with which HartRAO participates. These are the European VLBI Network (EVN) and Australia Telescope Long Baseline Array (AT-LBA).

Astrometric and geodetic VLBI is usually carried out through the International VLBI Service for Astronomy and Astrometry (IVS).

In addition, the radio telescope is used for single-dish observing, which is described below.

HartRAO 26m telescope single-dish observing

For single-dish observing with the 26m telescope, multiple receivers are available. Their technical characteristics are summarised in HartRAO 26m Radio Telescope Details webpage.

Data from single-dish observing is controlled by the linux-based "New Control Computer System" (NCCS). This supports queue-scheduled, unattended observing.

Single-dish observing modes available with the 26m telescope are:

The queue-scheduled observing operates with user written input files. The format for these, and the key words used to specify the details of each observation ("scan") is described in NCCS Input Files for Single-Dish Observing. However HartRAO staff will assist in creating observing input files.

Prospective observers are encouraged to discuss and refine their needs with the HartRAO Time Allocation Committee (tac@hartrao.ac.za) before submitting a formal observing proposal.

The single-dish observing proposal form is available here. Please complete and email to the HartRAO Time Allocation Committee (tac@hartrao.ac.za).