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asked Aug 12 by ravijoshi (120 points) | 21 views

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Hello! The ls_dr8.photo_z catalog is not currently part of the web cross-matching tool because it does not include RA and Declination columns. However, it can be joined with the ls_dr8.tractor table based on the “ls_id” column, which is a unique object identifier for each row in the photo_z catalog. If you are aiming to cross-match with one of your own tables, one approach would be to cross-match first with ls_dr8.tractor and then join based on ls_id. Please let us know if you would need help or run into problems doing this.

answered Aug 18 by sjuneau (140 points)

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