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User Specified Search Field
You may search on any column listed below. Where reasonable, the table lists the range of valid values or a set of sample values. A description of the column is also given. Note 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.
From a MAST search form, simply select the column "label" in the forms pulldown menu and type in the qualification in the adjacent box. Note that 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. In a HTTP GET request, specify the column "name" in the service request. (See the MAST Services web page for information on sumbitting GET requests.)
| Column Name | Column Label | Description | Examples/Valid Values | Data Type |
|---|---|---|---|---|
| tors_object_id | Mission Object Name | The name of the astronomical object as given in the mission catalog. Various designations were used by the different missions. All stored object names are upper case. | Examples: M81, NGC 3031, SN 1993J | char |
| mast_spec_type | MAST spectype | spectral class used by MAST for further processing. In general, the order of preference for source of spectral classes was Skiff (latest publication), SIMBAD, and Sky2000, unless otherwise noted. | char | |
| st_bibcode | Bibcode | Bibcode extracted from the Skiff catalog. Note the bibcode refers to the Skiff spectral classification and not necessarily the observation or the spectral type assigned by MAST. | char | |
| tors_mission | Mission | Name of mission/instrument | Examples: GHRS, STIS, IUE, HUT | char |
| tors_data_id | Data ID | Observation Identifier | Examples: Z3280105T, O48Z30010, SWP02456, LWR00501 | char |
| tors_comment | Comment | Explanatory comments regarding the data sets. The contents will vary with mission. Currently the field describes the gratings used by GHRS spectra. | char | |
| st_type | TT | Encoded spectral type TT specified as an integer (e.g., TT=12 for A stars). See the Spectral Classification Tables. | Range: 0 and 10 to 56 (see table ?) | long |
| st_subt | tt | Encoded spectral subtype specified as an integer. See the Spectral Classification Tables. | Range: 0 for unknown, 10 to 20 for normal stars, 10-12 for novae, and 10-16 for supernovae (see table ?) | long |
| st_lum | LL | Luminosity class specified as an integer from 10 to 35. See the Spectral Classification Tables. | Example: 0 and 10 to 35 (see table ?) | long |
| st_p1 | P1 | First encoded global peculiarity. Also indicates composites stars (p1=1). See the Spectral Classification Tables. | Range: 0 to 9, 0 = unknown | long |
| st_p2 | P2 | Second encoded global peculiarity (must have a different value from P1). See the Spectral Classification Tables. | Range: 0 to 9, 0 = unknown | long |
| st_p3 | P3 | third encoded peculiarity, specific to a particular type or group of spectral types. Note for composites, P3 and P4 specify the TT value of the secondary star (e.g., for an A secondary (TT=12), P3=1 and P4 = 2). See the Spectral Classification Tables. | Range: 0 to 9, 0 = unknown | long |
| st_p4 | P4 | fourth encoded peculiarity, specific to a particular type or group of spectral types. Note for composites, P3 and P4 specify the TT value of the secondary star (e.g., for an A secondary (TT=12), P3=1 and P4 = 2). See the Spectral Classification Tables. | Range: 0 to 9, 0 = unknown | long |
| tors_radeg_2000 | RA (J2000) | Right Ascension in J2000 as provided by mission observing catalog. | double | |
| tors_decdeg_2000 | Dec (J2000) | Declination in J2000 as provided by mission observing catalog. | double | |
| st_cflag | Detail Flag | Flags special cases needing further explanation. | d=0 normal, d=1 a classification in which a decimal subtype was truncated to an integer value, d=2 a ambiguous classification such as kA3, d=3 an unparsed classification | long |
| st_sflag | Catalog Selection Flag | Flags cross correlation criateria. Values from 9 to 19 refer to Skiff ctalog correlations, 20-29 are for Sky_2000 and 30 is a Simbad-related flag. | 9 = Skiff table correlation using another tors entry with same object_id 10 = Skiff table correlation using target name/aliases, < 5 arcsec separation, and latest publication date 11 = Skiff table correlation using another tors entry with same object_id 12 = Skiff table correlation using Simbad target name/aliases, < 5 arcsec separation, and latest publication date 13 = Skiff table correlation using another tors entry with same object_id 14 = Skiff table correlation using < 5 arcsec separation, and latest publication date 16 = Skiff table correlation using target name/aliases, and latest publication date 17 = Skiff table correlation using another tors entry with same object_id 20 = Sky2000 table correlation using < 5 arcsec separation and HD target name 24 = Sky2000 table correlation using < 5 arcsec separation (excludes target name correlations) 30 = Simbad spectral type used | long |
| st_target | Skiff Target | Target name from Skiff table (if found) | char | |
| skiff_spec_type | skiff spectype | Skiff-assigned spectral class | char | |
| tors_simbad_name | SIMBAD Name | The name of the astronomical object as returned by SIMBAD. | char | |
| simbad_spec_type | simbad spectype | Simbad-assigned spectral class if found | char | |
| sky_spec_type | Sky2000 spectype | Sky2000-assigned spectral class if known | char | |
| sky_spectype_src | Sky2000 spectype source | Sky2000-assigned spectral class | char | |
| mast_comment | MAST comment | MAST comment field currently used to describe cases where a Skiff spectral class was replaced with one from another source. | char | |
| st_comment | comment | comment regarding assignment of spectral class usually referring to cross-correlation criteria. | char | |
| st_rest | unparsed text | Part of string from original spectral classification that was ignored or unable to be parsed in the encoding process. | Mixed-case string | char |
| v_mag | V mag | V magnitude | char | |
| tors_ned_name | NED Name | The name of the astronomical object as returned by NED. | char | |
| st_bandpass | Bandpass | Bandpass | char | |
| st_date | Pub. Year | Year of paper in which spectral classification was first published (from Skiff's catalog) | 2001 | long |
| Column Name | Column Label | Description | Examples/Valid Values | Data Type |
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