... R2795 Arecibo Observatory Date Received: 2012-Aug-31 15:40:12 William E. Gordon Telescope Observing Time Request COVER SHEET Section I - General Information Submitted for Sep 1 2012. ... These observations continue our six year survey of all the M- and E-class asteroid observable at Arecibo. ... Begin ­ End Interval­Interval 2245 ­ 0200 ­ ­ ­ Days Needed at This Interval 4 Time Constraints (Must Be Justified in the Prop osal Text) Asteroid target is at opposition and SNR is maximized. ...

... 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. ...