... R2517 Date Received: 2009-Jul-02 20:55:18 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 17:00 Hours Urgent Proposal for Arecibo Radar Imaging of Near-Earth Asteroid 2009 KC3 We propose radar observations of potentially hazardous asteroid 2009 KC3, which will be a strong imaging target during its approach within 19 lunar distances in August, 2009. ...
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... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...