Proposal Identification No.: R2094 Date Received: 2005-Mar-18 12:12:36 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 2.5 Hours Radar observations of two small asteroids. ... Name Michael C Nolan Institution Arecibo Observatory E-mail nolan@naic.edu Phone 7878782612 334 Student x Service Observing Request Remot e Observing Request X None All 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. ...