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To find observations, use this form: http://mwa-metadata01ws.pawseymwatelescope.org.au/metadata/find
Fill in the search parameters you want to filter on, and click on the 'Search' button at the top of the page. The observations matching the search criteria will be shown in a table - use the page number buttons at the top of the page to view extra results. Clicking on the observation ID for any observation in the table (the first column) shows the full observation information page (described below).
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You will generally get to the page describing an observation from one of the above pages, but you can use the direct URL - eg: http://mwa-metadata01ws.pawseymwatelescope.org.au/observation/obs/?obs_id=1227437648
At the top of the page is a 'STATS' button, which gives the total observation time (in seconds and hours) of all observations that match the criteria - not just the ones on the current page.
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Otherwise, you can use the direct URL - eg: http://mwa-metadata01ws.pawseymwatelescope.org.au/tiles/tilemap/?obsid=1227492560
The tile status map shows the tiles as they are physically located in the desert, colour coded to show (for a particular observation) whether the actual state of the tile for that observation matched the desired state. Good tiles are shown as rectangles with a green '+' sign inside, and bad tiles (tiles with beamformer communication errors, receiver errors, flagged tiles, or tiles that have too many bad dipoles) have a red '+' inside instead.
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