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AAT Service Observing Programme


Since February 1st, 2015, users can apply for service time at any time. See the service mode page for details.

This page is no longer actively maintained, but will be kept as a record of observations done for programs submitted before February 1st, 2015. Some of the links in this page are now out of date. Please use the AAO web pages instead.

Service Programmes expire after 18 months.


All enquiries regarding the service program should be addressed to the service manager at service@aao.gov.au.

Key Links for Proposers (and AAO Observers)

Service Proposal Directory: Status of all current programmes in the queue for each instrument. (Individual proposal files are also available here for AAO internal access.)
Service Observing Report Form: AAO internal access only.
Observing Report Archive: AAO internal access only.

General Information

How to apply
Application forms
AAT service schedules
Service proposal status summaries
Service observing reports
AAOmega/KOALA Service Information


The Australian Astronomical Observatory operates a service observing programme at the Anglo-Australian Telescope (AAT) for programmes that require up to six hours of observing time. Service time is normally allocated for programmes that require a small amount of data to complete a programme, to look at individual targets of interest, or to try out new observing techniques.

The proposals are graded by a three member panel, a process which takes 3-4 weeks, before being accepted into the service programme.

In detail, the AAT service proposal system operates as follows:

How to apply for service time

AAT service proposal summaries

The following tables provide information on the status of service proposals accepted at the AAT. Please note that service proposals expire after a period of 18 months but may be re-submitted at any time.

Service observing reports

A nightly report is submitted by the AAO astronomer carrying out the service observing, which is normally forwarded to the PI of an observed programme.

Special AAOmega/KOALA Service Information

AAOmega is the most complex of all the instruments offered in Service Mode, and is used in two modes:

     (1) as a multi-object spectrograph, fed from prime focus, or
     (2) as spectrograph for the KOALA IFU, and fed from cassegrain focus.

Proposers using AAOmega in either mode should carefully note the following: