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VLAFIRST Field Descriptions
You may submit queries using any of the fields listed below. The "Column label" is the name displayed on the search forms and in search results. The "Column name" is the actual column name in the table and needs to be specified in GET requests. (See the MAST Services web page for information on submitting GET requests.) If the "Column name" is in italics, it means the table is indexed on that field and queries with that field will run faster. Clicking on "Data Type" entries will display information on search options. When using the "user-specified field" form element on a MAST search form, simply select the column "label" in the forms pulldown menu and type in the qualification in the adjacent box. If you specify constraints on the same column in more than one form element, they will all be included in the query and you may not get results you expect. Note the entries in the table below may be sorted by clicking on the column headings. Catalog Description of VLAFIRST TableLast Update:
| Column Name | Column Label | Description | Examples/Valid Values | Data Type |
|---|---|---|---|---|
| Column Name | Column Label | Description | Examples/Valid Values | Data Type |
| v_imname | Data ID | Data ID | Format HHMMM+/-DDMMM followed by a character; e.g. 21105-07364G | string |
| v_fieldname | Field Name | Field name | Field specified by coordinates ; e.g. 07150+58 | string |
| v_ra | RA (J2000) | Right Ascension (J2000) | Range 0 to 360 deg | ra |
| v_dec | Dec (J2000) | Declination (J2000) | Decimal Degrees Range -90 to +90 deg | dec |
| v_progid | VLA Program ID | Program ID | AB628, AB879, AB950, AH707, AB0628 | string |
| v_imclass | AIPS Image Class | AIPS image class | COADD, FCPRT | string |
| v_datamax | Max Pixel Value | Max pixel value | 0.000821 to 34.622581 Janskys | float |
| v_datamin | Min Pixel Value | Min pixel value | -0.108236 to -0.000474 Janskys | float |
| v_glong | Galactic Longitude | Galactic Longitude | 0 to 360 deg | float |
| v_glat | Galactic Latitude | Galactic Latitude | Decimal Degrees Range -90 to +90 deg | float |
| v_elong | Ecliptic Longitude | Ecliptic Longitude | 0 to 360 deg | float |
| v_elat | Ecliptic Latitude | Ecliptic Latitude | Decimal Degrees Range -90 to +90 deg | float |
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