... R1898 Date Received: 2004-Oct-15 21:02:41 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 7.5 Hours Radar observations of long-lost asteroid 1937 UB (Hermes) We prop ose to observe asteroid 1937 UB (Hermes), a large (1-2 km) ob ject of considerable historical and dynamical interest. Hermes was recovered to day after eluding astronomers for 66 years since its 1937 discovery. ...

... 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. ...