TABLE  CurrentAstrometry

Contains the current astrometric calibration coefficients.

This table contains the current astrometric calibration coefficients for
each science detector frame that is a part of a multiframe.

Required constraints:
  • Primary key is (multiframeID,extNum)
  • (multiframeID,extNum) references MultiframeDetector(multiframeID,extNum)

NameTypeLengthUnitDescriptionDefault ValueUnified Content Descriptor
multiframeIDbigint8 the UID of the relevant multiframe-99999999obs.field
extNumtinyint1 the extension number of this frame0meta.number
cuEventIDint4 UID of curation event giving rise to this record-99999999meta.bib
cTypeXvarchar8 G&C WCS type, eg 'RA---ZPN' {image extension keyword: CTYPE1}'NONE'pos.eq.ra;meta.main
cTypeYvarchar8 G&C WCS type, eg 'DEC--ZPN' {image extension keyword: CTYPE2}'NONE'pos.eq.dec;meta.main
crValXfloat8 Coordinate value at reference point on axis 1 {image extension keyword: CRVAL1}-0.9999995e9pos.cartesian.x;instr.det
crValYfloat8 Coordinate value at reference point on axis 2 {image extension keyword: CRVAL2}-0.9999995e9pos.cartesian.y;instr.det
crUnit1varchar8 Unit of right ascension co-ordinates {image extension keyword: CRUNIT1}deg 
crUnit2varchar8 Unit of declination co-ordinates {image extension keyword: CRUNIT2}deg 
crPixXfloat8pixelsPixel coordinate of the reference point on axis 1 {image extension keyword: CRPIX1}-0.9999995e9pos.cartesian.x;instr.det
crPixYfloat8pixelsPixel coordinate of the reference point on axis 2 {image extension keyword: CRPIX2}-0.9999995e9pos.cartesian.y;instr.det
cd11float8 Element of the linear transformation matrix (with scale) {image extension keyword: CD1_1}-0.9999995e9
cd21float8 Element of the linear transformation matrix (with scale) {image extension keyword: CD2_1}-0.9999995e9
cd12float8 Element of the linear transformation matrix (with scale) {image extension keyword: CD1_2}-0.9999995e9
cd22float8 Element of the linear transformation matrix (with scale) {image extension keyword: CD2_2}-0.9999995e9
pv21 tooltipfloat8 Coefficient for r term (use only with ZPN projection) {image extension keyword: PV2_1}-0.9999995e9
pv22 tooltipfloat8 Coefficient for r**2 term (use only with ZPN projection) {image extension keyword: PV2_2}-0.9999995e9
pv23 tooltipfloat8 Coefficient for r**3 term (use only with ZPN projection) {image extension keyword: PV2_3}-0.9999995e9
pv24 tooltipfloat8 Coefficient for r**4 term (use only with ZPN projection) {image extension keyword: PV2_4}-0.9999995e9
pv25 tooltipfloat8 Coefficient for r**5 term (use only with ZPN projection) {image extension keyword: PV2_5}-0.9999995e9
projp1float8 Old style WCS {image extension keyword: PROJP1}-9.999995e+08 
projp3float8 Old style WCS {image extension keyword: PROJP3}-9.999995e+08 
projp5float8 Old style WCS {image extension keyword: PROJP5}-9.999995e+08 
tc33float8 WCS transform matrix element {catalogue extension keyword:  TC3_3}-0.9999995e9 
tc35float8 WCS transform matrix element {catalogue extension keyword:  TC3_5}-0.9999995e9 
tc53float8 WCS transform matrix element {catalogue extension keyword:  TC5_3}-0.9999995e9 
tc55float8 WCS transform matrix element {catalogue extension keyword:  TC5_5}-0.9999995e9 
tcrpx3float8 Pixel coordinate at ref point {catalogue extension keyword:  TCRPX3}-0.9999995e9 
tcrpx5float8 Pixel coordinate at ref point {catalogue extension keyword:  TCRPX5}-0.9999995e9 
tcrvl3float8 Coordinate value at ref pixel {catalogue extension keyword:  TCRVL3}-0.9999995e9 
tcrvl5float8 Coordinate value at ref pixel {catalogue extension keyword:  TCRVL5}-0.9999995e9 
tctyp3varchar8 Coordinate/projection type {catalogue extension keyword:  TCTYP3}NONE 
tctyp5varchar8 Coordinate/projection type {catalogue extension keyword:  TCTYP5}NONE 
tv51float8 WCS parameter value term {catalogue extension keyword:  TV5_1}-0.9999995e9 
tv52float8 WCS parameter value term {catalogue extension keyword:  TV5_2}-0.9999995e9 
tv53float8 WCS parameter value term {catalogue extension keyword:  TV5_3}-0.9999995e9 
tv54float8 WCS parameter value term {catalogue extension keyword:  TV5_4}-0.9999995e9 
tv55float8 WCS parameter value term {catalogue extension keyword:  TV5_5}-0.9999995e9 
wcsPasstinyint1 Pass level of WCS {image extension keyword: WCSPASS}0
numRmsint4 No. of astrometric standards used in fit {image extension keyword: NUMBRMS}-99999999stat.fit.param
stdCRmsfloat8 RMS residual of fit to astrometric standards {image extension keyword: STDCRMS}-0.9999995e9stat.fit.residual
refRaShift01float8arcsecRef RA shift pass 0 to 1 (new - old) {image extension keyword: RAZP01}-0.9999995e9??
refDecShift01float8arcsecRef Dec shift pass 0 to 1 (new - old) {image extension keyword: DECZP01}-0.9999995e9??
refRaShift02float8arcsecRef RA shift pass 0 to 2 (new - old) {image extension keyword: RAZP02}-0.9999995e9??
refDecShift02float8arcsecRef Dec shift pass 0 to 2 (new - old) {image extension keyword: DECZP02}-0.9999995e9??
refRaShift12float8arcsecRef RA shift pass 1 to 2 (new - old) {image extension keyword: RAZP12}-0.9999995e9??
refDecShift12float8arcsecRef Dec shift pass 1 to 2 (new - old) {image extension keyword: DECZP12}-0.9999995e9??
refRaShift22float8arcsecRef RA shift pass 2 to 2 (new - old) {image extension keyword: RAZP22}-0.9999995e9??
refDecShift22float8arcsecRef Dec shift pass 2 to 2 (new - old) {image extension keyword: DECZP22}-0.9999995e9??
distortMapvarchar256 filename of 2d non-linear distortion mapNONEmeta.id;meta.file
centralRafloat8DegreesRA (J2000) at device centre-0.9999995e9pos.eq.ra;meta.main
centralDecfloat8DegreesDec (J2000) at device centre-0.9999995e9pos.eq.dec;meta.main
cxfloat8 unit vector of spherical co-ordinates of device centre-0.9999995e9pos.distance;pos.cartesian.x
cyfloat8 unit vector of spherical co-ordinates of device centre-0.9999995e9pos.distance;pos.cartesian.y
czfloat8 unit vector of spherical co-ordinates of device centre-0.9999995e9pos.distance;pos.cartesian.z
htmIDbigint8 Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates of device centre-99999999pos.eq
posAnglefloat8Degreesorientation of image x-axis to N-S-0.9999995e9pos.posAng
lfloat8DegreesGalactic longitude of device centre-0.9999995e9pos.galactic.lon
bfloat8DegreesGalactic latitude of device centre-0.9999995e9pos.galactic.lat
lambdafloat8DegreesSDSS system spherical co-ordinate 1 of device centre-0.9999995e9pos
etafloat8DegreesSDSS system spherical co-ordinate 2 of device centre-0.9999995e9pos
imageExtentreal4ArcminutesThe maximum angular extent from the central position-0.9999995e9pos.angDistance
minRafloat8DegreesThe minimum RA (J2000) on the device-0.9999995e9pos.eq.ra
minDecfloat8DegreesThe minimum Dec (J2000) on the device-0.9999995e9pos.eq.dec;meta.main
maxRafloat8DegreesThe maximum RA (J2000) on the device-0.9999995e9pos.eq.ra
maxDecfloat8DegreesThe maximum Dec (J2000) on the device-0.9999995e9pos.eq.dec;meta.main
xPixSizereal4ArcsecondsAngular size of pixels in X-0.9999995e9pos.angDistance
yPixSizereal4ArcsecondsAngular size of pixels in Y-0.9999995e9pos.angDistance
Total length758