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Table: smash_dr2.source
(The bold columns are indexed columns)
| Column Name | Description | Datatype |
|---|---|---|
| cerr | Uncertainty of CMAG including errors in calibration | REAL |
| chi | DAOPHOT chi value, i.e. how well the PSF fit this source | REAL |
| chip | Chip number (1-62) | SMALLINT |
| chipid | Unique chip image name, e.g. 00123451_10 | CHAR |
| cmag | Calibrated magnitude version of MAG | REAL |
| dec | Declination (J2000.0) of source, in degrees | DOUBLE |
| decerr | Uncertainty in DEC (arcseconds) based on S/N of source and PSF FWHM | REAL |
| decindiv | Declination of source, from the original chip X/Y and WCS | DOUBLE |
| decref | Declination (J2000.0) of source, in degrees, from the referene chip chip file using XREF/YREF coords and the reference chip WCS | DOUBLE |
| elat | Ecliptic latitude | DOUBLE |
| elon | Ecliptic longitude | DOUBLE |
| err | Uncertainty of MAG | REAL |
| expnum | Eight-digit exposure number | CHAR |
| fieldid | Field ID | INTEGER |
| filter | Filter, u, g, r, i, or z | CHAR |
| flag | Source Extractor FLAG value from coadd image | SMALLINT |
| forced | Boolean flag indicating if this is forced (ALLFRAME) photometry | SMALLINT |
| glat | Galactic latitude of field, in degrees | DOUBLE |
| glon | Galactic longitude of field, in degrees | DOUBLE |
| htm9 | HTM index (order 9 => ~10 arcmin size) | INTEGER |
| id | Deep ID for this source, same as in object table | CHAR |
| mag | Instrumental magnitude from ALLFRAME or ALLSTAR (not both) | REAL |
| mjd | Exposure Modified Julian Date | DOUBLE |
| nest4096 | HEALPIX index (Nsides 4096, Nest scheme => ~52 arcsec size) | INTEGER |
| origid | ID used for this detection in the original als/alf chip file | INTEGER |
| prob | Source Extractor stellaricity probability value (0~galaxy, 1~star) | REAL |
| ra | Right Ascension (J2000.0) of source, in degrees | DOUBLE |
| raerr | Uncertainty in RA (arcseconds) based on S/N of source and PSF FWHM | REAL |
| raindiv | Right Ascension of source, from the original chip X/Y and WCS | DOUBLE |
| random_id | Random ID in the range 0.0 => 100.0 | REAL |
| raref | Right Ascension of source, from X/YREF and ref WCS | DOUBLE |
| refid | ID used for this detection in the reference frame file | INTEGER |
| ring256 | HEALPix ring nside=256 index | INTEGER |
| sharp | DAOPHOT sharp value, measurement of peakiness | REAL |
| sourceid | Unique ID for this source, the field name plus a running number | CHAR |
| x | X-coordinate for this source in the original chip (1-indexed) | REAL |
| xref | X-coordinate for this source in the reference chip (1-indexed) | REAL |
| y | Y-coordinate for this source in the original chip (1-indexed) | REAL |
| yref | Y-coordinate for this source in the reference chip (1-indexed) | REAL |
