Oncat data catalog
Overview
The Oncat Data Catalog is a powerful tool for searching through your data. The web interface provides a quick overview of all your experiments. There is also a python interface to programmatically find runs.
Web Interface
To access Oncat from your web browser go to https://oncat.ornl.gov. You will see a screen like Figure 1. Where you will enter your XCAMS user name and password.
Figure 1 Oncat Login page
Once logged in you will see the screen in Figure 2. CLick the explore button
Figure 2. The Oncat explore page
This will provide you with a list of facilities as shown in Figure 3.
Figure 3. A list of Facilites in Oncat
Clicking on a facility say for example SNS will provide a list of instruments at that facility as shown in Figure 4.
Figure 4. The SNS Instrument list
Click on an instrument to see proposals you are on for that instrument as shown in Figure 5. In the upper right hand box you can filter by team member in the case give in Figure 5 Matt Stone was typed in as the team member. For each proposal there is a button you can click on to get to the runs in that proposal, the title, the PI and metadata for the proposal. Notice the last Column mentions Data Availability. This column describes if the data is on the file system as analysis.sns.gov or if it is archived. If it shows archived and you need to work with the data contact your local contact to help you retrieve it.
Figure 5. Matt Stone’s proposals on ARCS
If we select one of the proposals, in this case IPTS-7816, we see the page shown in Figure 6. Here you see some metadata for the experiment, in the middle near the top a runs button. If you click on the runs button you see the View in Figure 7.
Figure 6. info view for IPTS-7816
In Figure 7. you see a table that contains a list of runs and some metadata. There is also a path to where the raw data is stored on the analysis machines. The three horizontal bars in the upper left next to “RUNS” allows you to adjust how the table is viewed. The button with the cloud and the down arrow allows you download a csv file of the table.
Figure 7. the list of runs for IPTS-7816