Lbw Beam maps

20feb07

Intro:

The calibration scans (see ao technical memo 2000-04) does two crosses (each leg 6 beam widths long) about a source. The crosses are rotated by 45 degrees from each other. The analysis then fits a model to the main beam and the first sidelobe. This model is used below to create beam maps at various azimuths, zenith angles, and frequencies.
Note: these beam maps are not nyquist sampled over the entire 2d range. They are the output of the model.

The Beam maps:

The beams are contoured in 3 db steps.

3C138 (B0518+165) at 1415 Mhz. Data taken jan07.

Single beam map (.ps) (.pdf) : This one is easier to see.
Beam maps before transit (.ps) (.pdf). 6 beams per page.
Beam maps after transit (.ps) (.pdf). 6 beams per page.

processing: x101/070219/lbwbeammaps.pro

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