... R1896 Date Received: 2004­Oct­08 11:58:05 Technical Page Proposal Type: Urgent General Category: Planetary Radar Observation Category: Solar System Total Time Requested: 12 Hours Proposal Title: Radar Imaging of Near­Earth Asteroid 2003 TH2 ABSTRACT: We propose to obtain high­resolution (15m) imaging of near­Earth asteroid 2003 TH2 in October of 2003. Recent experience has shown that there is an enormous variety in the shapes, radar reflectivities, and rotation states of near­Earth asteroids. ...

... 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. ...