| Contains previous astrometric calibration coefficients. |
| This table contains previous astrometric calibration coefficients for each science detector frame that is a part of a multiframe. Required constraints:
|
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| multiframeID | bigint | 8 | the UID of the relevant multiframe | obs.field | ||
| extNum | tinyint | 1 | the extension number of this frame | meta.number | ||
| versNum | int | 4 | Version number of current astrometric solution | meta.software | ||
| cuEventID | int | 4 | UID of curation event giving rise to this record | meta.bib | ||
| cTypeX | varchar | 8 | G&C WCS type, eg 'RA---ZPN' {image extension keyword: CTYPE1} | pos.eq.ra;meta.main | ||
| cTypeY | varchar | 8 | G&C WCS type, eg 'DEC--ZPN' {image extension keyword: CTYPE2} | pos.eq.dec;meta.main | ||
| crValX | float | 8 | Coordinate value at reference point on axis 1 {image extension keyword: CRVAL1} | -0.9999995e9 | pos.cartesian.x;instr.det | |
| crValY | float | 8 | Coordinate value at reference point on axis 2 {image extension keyword: CRVAL2} | -0.9999995e9 | pos.cartesian.y;instr.det | |
| crUnit1 | varchar | 8 | Unit of right ascension co-ordinates {image extension keyword: CRUNIT1} | NONE | ||
| crUnit2 | varchar | 8 | Unit of declination co-ordinates {image extension keyword: CRUNIT2} | NONE | ||
| crPixX | float | 8 | pixels | Pixel coordinate of the reference point on axis 1 {image extension keyword: CRPIX1} | pos.cartesian.x;instr.det | |
| crPixY | float | 8 | pixels | Pixel coordinate of the reference point on axis 2 {image extension keyword: CRPIX2} | pos.cartesian.y;instr.det | |
| cd11 | float | 8 | Element of the linear transformation matrix (with scale) {image extension keyword: CD1_1} | pos.wcs.cdmatrix | ||
| cd21 | float | 8 | Element of the linear transformation matrix (with scale) {image extension keyword: CD2_1} | pos.wcs.cdmatrix | ||
| cd12 | float | 8 | Element of the linear transformation matrix (with scale) {image extension keyword: CD1_2} | pos.wcs.cdmatrix | ||
| cd22 | float | 8 | Element of the linear transformation matrix (with scale) {image extension keyword: CD2_2} | pos.wcs.cdmatrix | ||
| pv21 | float | 8 | Coefficient for r term (use only with ZPN projection) {image extension keyword: PV2_1} | -0.9999995e9 | stat.fit.param | |
| pv22 | float | 8 | Coefficient for r**2 term (use only with ZPN projection) {image extension keyword: PV2_2} | -0.9999995e9 | stat.fit.param | |
| pv23 | float | 8 | Coefficient for r**3 term (use only with ZPN projection) {image extension keyword: PV2_3} | -0.9999995e9 | stat.fit.param | |
| wcsPass | tinyint | 1 | Pass level of WCS {image extension keyword: WCSPASS} | 0 | pos.wcs | |
| numRms | int | 4 | No. of astrometric standards used in fit {image extension keyword: NUMBRMS} | -99999999 | stat.fit.param | |
| stdCRms | float | 8 | RMS residual of fit to astrometric standards {image extension keyword: STDCRMS} | -0.9999995e9 | stat.fit.residual | |
| distortMap | varchar | 256 | filename of 2d non-linear distortion map | NONE | meta.id;meta.file | |
| centralRa | float | 8 | Degrees | RA (J2000) at device centre | -0.9999995e9 | pos.eq.ra;meta.main |
| centralDec | float | 8 | Degrees | Dec (J2000) at device centre | -0.9999995e9 | pos.eq.dec;meta.main |
| cx | float | 8 | unit vector of spherical co-ordinates of device centre | pos.distance;pos.cartesian.x | ||
| cy | float | 8 | unit vector of spherical co-ordinates of device centre | pos.distance;pos.cartesian.y | ||
| cz | float | 8 | unit vector of spherical co-ordinates of device centre | pos.distance;pos.cartesian.z | ||
| htmID | bigint | 8 | Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates of device centre | -99999999 | pos.eq | |
| posAngle | float | 8 | Degrees | orientation of image x-axis to N-S | -0.9999995e9 | pos.posAng |
| l | float | 8 | Degrees | Galactic longitude of device centre | pos.galactic.lon | |
| b | float | 8 | Degrees | Galactic latitude of device centre | pos.galactic.lat | |
| lambda | float | 8 | Degrees | SDSS system spherical co-ordinate 1 of device centre | pos | |
| eta | float | 8 | Degrees | SDSS system spherical co-ordinate 2 of device centre | pos | |
| imageExtent | real | 4 | Arcminutes | The maximum angular extent from the central position | -0.9999995e9 | pos.angDistance |
| minRa | float | 8 | Degrees | The minimum RA (J2000) on the device | -0.9999995e9 | pos.eq.ra |
| minDec | float | 8 | Degrees | The minimum Dec (J2000) on the device | -0.9999995e9 | pos.eq.dec;meta.main |
| maxRa | float | 8 | Degrees | The maximum RA (J2000) on the device | -0.9999995e9 | pos.eq.ra |
| maxDec | float | 8 | Degrees | The maximum Dec (J2000) on the device | -0.9999995e9 | pos.eq.dec;meta.main |
| xPixSize | real | 4 | Arcseconds | Angular size of pixels in X | -0.9999995e9 | pos.angDistance |
| yPixSize | real | 4 | Arcseconds | Angular size of pixels in Y | -0.9999995e9 | pos.angDistance |
| Total length | 538 |