Sloan Digital Sky Survey III
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Find Data for Objects

Back to General Tasks index

Using the Imaging Query Form (open in new window)

  1. In the Limit number of output rows textbox, enter the number of objects you would like the search to return. If you want unlimited number of rows returned, enter 0.

  2. In the Output Format textbox, enter the format you want for your output. HTML will output results as a table in your browser. CSV output can be read by many graphing programs.

  3. In the Parameters section, select what types of Imaging data you would like returned. Typical returns the most common parameters. You can also select any parameters from the menu. To select more than one, hold down CTRL while clicking on each one.

  4. Select what type of Spectroscopy data you would like returned. If you select None under Spectroscopy, the tool will not return any spectral data. If you select any of the other options, the tool will return spectral data for all objects, including those for which no spectrum has been observed – but objects without an observed spectrum have zeroes for all spectroscopic data.

  5. You can use the Filters checkboxes to choose which filter names to return. The Imaging Query Form will return only the names of the filters, not the images. You can then use the filter names as part of a query to the Science Archive Server (SAS).

Next, you will set constraints based on positions or imaging data. Constraints are characteristics of the objects that you are interested in. The Imaging Query Form will return data for objects that meet your constraints. Click "Next" to learn how to find objects by position.

Next: Find by Position

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