GALEX Merged Catalog of Sources¶
The GALEX Merged Catalog of Sources (MCAT) is the primary source catalog from the Galaxy Evolution Explorer (GALEX) mission, a NASA Small Explorer that operated between 2003 and 2012. The telescope conducted sky surveys in two ultraviolet bands: far-UV (FUV, ~1350–1750 Å) and near-UV (NUV, ~1750–2800 Å).
The MCAT combines detections from multiple individual observations (visits) to generate a consolidated list of unique sources, providing UV photometry and basic properties for hundreds of millions of objects. It covers different survey depths, from the shallow All-Sky Imaging Survey (AIS, covering ~26,000 deg²) to the deep Deep Imaging Survey (DIS, with exposures of tens of thousands of seconds).
Loading with LSDB¶
>> lsdb.open_catalog('https://linea.data.lsdb.io/hats/galex')
Download with wget¶
$ wget -e robots=off -r -np -nH --cut-dirs=1 -c -R "index.html*" -l 0 https://linea.data.lsdb.io/hats/galex/
Catalog Metadata¶
| Number of rows | Number of columns | Number of partitions | Disk size | Builder Version |
|---|---|---|---|---|
| 292,296,119 | 368 | 1,595 | 343.7 GiB | hats-import v0.9.2, hats v0.9.2 |