Proposal Identification No.: R2103 Date Received: 2005­May­30 04:59:22 Technical Page Proposal Type: Regular General Category: Planetary Radar Observation Category: Solar System Total Time Requested: 48 Hours Proposal Title: Surface Properties of Titan from Arecibo Radar Observations ABSTRACT: We are requesting S­band planetary radar time for twelve observations of Titan in January, 2006. ... Maybe Part of the observing run. ...

... 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. ...