Data Access

The SMASH data are accessible by a variety of means:

Data Lab Table Access Protocol (TAP) service

TAP provides a convenient access layer to the SMASH catalog database. TAP-aware clients (such as TOPCAT) can point to http://datalab.noao.edu/tap, select the smash_dr1 database, and see the database tables and descriptions. smash_dr1 contains six tables: chip, exposure, field, object, source, and xmatch. These are described in the schema page.

Data Lab Query Manager

The Query Manager is available as part of the prototype Data Lab software distribution. The Query Manager client provides a Python API to Data Lab database services. For the SMASH DR1 release, these services include only anonymous access through synchronous queries of the catalog made directly to the database. The full public release of the Data Lab Query Manager in the summer of 2017 will include authenticated access, synchronous and asynchronous queries, TAP queries, personal database storage, and storage through the Data Lab VOSpace.

Image cutouts

The Data Lab Simple Image Access (SIA) service provides a fast way to retrieve cutouts from SMASH images. For an example of how to use the SIA service, see this Jupyter notebook.

Jupyter Notebook Server

The Data Lab Jupyter Notebook server contains examples of how to access and visualize the SMASH catalog.

FTP access

All of the SMASH catalog files, images, and products of the photometric pipeline are available by FTP at the NOAO High Level Data Products site (easily browsed with Chrome).