Introduction

This document describe how to plan and describe the technical aspects of an MWA observing proposal ('Part C'), as written by the person who schedules your observations. It does not describe the science justification needed to get your proposal accepted, only the technical requirements that need to be included so we can schedule your observations and get the results you want, if it ends up being accepted.

Sources

Make it VERY clear what your sources are, and where they are in the sky:

When do you want your observations scheduled?

Day or night observations?

Commensal observing:

If your observations need to be scheduled around some other instrument (GMRT, Parkes, etc.), then your proposal needs to state:

Observation ordering

What order would you like individual observations different sources, frequencies, etc.) taken in? Does it matter?

Suppose you want four hours, on each of 5 sources, at each of three frequencies, and there are 6 hours available per night. What ordering suits your science better for the 60 hours of observations? Eg:

Things to consider:

Frequency Channels

MWA observations use an arbitrary set of 24 ‘coarse channels’ numbered from 0-255, where each channel is 1.28 MHz wide. The centre frequency of each coarse channel is 1.28 MHz multiplied by the channel number. We carry out morning and evening calibrator observations every night, for eight commonly used channel sets:

Decide whether you can use on of these eight frequently-used channel sets for your observation Using one of the above channel sets means that:

If you’d prefer to use a unique channel set, mention that in the proposal. That way I won’t waste time by asking if you want to use a GLEAM band, for example. Also, if you need precise limits for frequency, mention that in the proposal, so they don’t get missed by rounding to the nearest 1.28 MHz wide channel, or better yet, specify the exact channel numbers you want.

Summary

What I need to see in part C, at a glance (ideally in a table):


What you need to remember: