Description: Contains metadata related to an individual OTA image that comprises a portion of the full exposure. The characterization of the image quality, the detrends applied, and the astrometric solution from the raw pixels (X,Y) to the detector focal plane (L,M) is provided. Name Unit Data Type Size Default Value Description imageID dimensionless BIGINT 8 NA Unique image identifier. Constructed as (100 * frameID + ccdID). frameID dimensionless INT 4 NA Unique frame/exposure identifier. ccdID dimensionless SMALLINT 2 NA OTA identifier based on location in the focal plane, specific to an individual device. photoCalID dimensionless INT 4 NA Photometric calibration identifier. Details in the PhotoCal table. filterID dimensionless TINYINT 1 NA Filter identifier. Details in the Filter table. bias adu REAL 4 -999 OTA bias level. biasScat adu REAL 4 -999 Scatter in bias level. sky Janskys/arcsec^2 REAL 4 -999 Mean sky brightness. skyScat Janskys/arcsec^2 REAL 4 -999 Scatter in mean sky brightness. nDetect dimensionless INT 4 -999 Number of detections in this image. detectionThreshold magnitudes REAL 4 -999 Reference magnitude for detection efficiency calculation. astroScat arcsec REAL 4 -999 Measurement of the calibration (not astrometric error) defined to be the sum in quadrature of the standard deviations in the X and Y directions. photoScat magnitudes REAL 4 -999 Photometric scatter relative to reference catalog. nAstroRef dimensionless INT 4 -999 Number of astrometric reference sources. nPhotoRef dimensionless INT 4 -999 Number of photometric reference sources. recalAstroScatX arcsec REAL 4 -999 Measurement of the re-calibration (not astrometric error) in the X direction. recalAstroScatY arcsec REAL 4 -999 Measurement of the re-calibration (not astrometric error) in the Y direction. recalNAstroStars dimensionless INT 4 -999 Number of astrometric reference sources used in recalibration. recalphotoScat magnitudes REAL 4 -999 Photometric scatter relative to reference catalog. recalNPhotoStars dimensionless INT 4 -999 Number of astrometric reference sources used in recalibration. nAxis1 pixels SMALLINT 2 -999 Image dimension in x. nAxis2 pixels SMALLINT 2 -999 Image dimension in y. psfModelID dimensionless INT 4 -999 PSF model identifier. psfFWHM arcsec REAL 4 -999 Mean PSF full width at half maximum at image center. psfWidMajor arcsec REAL 4 -999 PSF major axis FWHM at image center. psfWidMinor arcsec REAL 4 -999 PSF minor axis FWHM at image center. psfTheta degrees REAL 4 -999 PSF major axis orientation at image center. momentMajor arcsec REAL 4 -999 PSF major axis second moment. momentMinor arcsec REAL 4 -999 PSF minor axis second moment. momentM2C arcsec^2 REAL 4 -999 Moment M2C = M_xx - M_yy. momentM2S arcsec^2 REAL 4 -999 Moment M2S = 2 * M_xy. momentM3 arcsec^2 REAL 4 -999 trefoil second moment = sqrt( (M_xxx - 3 * M_xyy)^2 + (3 * M_xxy - M_yyy)^2 ). momentM4 arcsec^2 REAL 4 -999 quadrupole second moment = sqrt( (M_xxxx - 6 * M_xxyy + M_yyyy)^2 + (4 * M_xxxy - 4 * M_xyyy)^2 ). apResid magnitudes REAL 4 -999 Residual of aperture corrections. dapResid magnitudes REAL 4 -999 Scatter of aperture corrections. detectorID dimensionless VARCHAR(100) 100   Identifier for each individual OTA detector device. qaFlags dimensionless BIGINT 8 -999 Q/A flags for this image. Values listed in ImageFlags. detrend1 dimensionless VARCHAR(100) 100   Identifier for detrend image 1, the static mask. detrend2 dimensionless VARCHAR(100) 100   Identifier for detrend image 2, the dark model. detrend3 dimensionless VARCHAR(100) 100   Identifier for detrend image 3, the flat. detrend4 dimensionless VARCHAR(100) 100   Identifier for detrend image 4, the fringe. detrend5 dimensionless VARCHAR(100) 100   Identifier for detrend image 5, the noisemap. detrend6 dimensionless VARCHAR(100) 100   Identifier for detrend image 6, the non-linearity correction. detrend7 dimensionless VARCHAR(100) 100   Identifier for detrend image 7, the video dark model. detrend8 dimensionless VARCHAR(100) 100   Identifier for detrend image 8. photoZero magnitudes REAL 4 -999 Locally derived photometric zero point for this image. ctype1 dimensionless VARCHAR(100) 100   Name of astrometric projection in focal plane L. ctype2 dimensionless VARCHAR(100) 100   Name of astrometric projection in focal plane M. crval1 focal plane pixels FLOAT 8 -999 Focal plane L corresponding to reference pixel. crval2 focal plane pixels FLOAT 8 -999 Focal plane M corresponding to reference pixel. crpix1 raw pixels FLOAT 8 -999 Reference pixel for focal plane L. crpix2 raw pixels FLOAT 8 -999 Reference pixel for focal plane M.; cdelt1 focal plane pixels/raw pixel FLOAT 8 -999 Pixel scale in focal plane x. cdelt2 focal plane pixels/raw pixel FLOAT 8 -999 Pixel scale in focal plane y. pc001001 dimensionless FLOAT 8 -999 Linear transformation matrix element between image pixel x and focal plane pixel L. pc001002 dimensionless FLOAT 8 -999 Linear transformation matrix element between image pixel y and focal plane pixel L. pc002001 dimensionless FLOAT 8 -999 Linear transformation matrix element between image pixel x and focal plane pixel M. pc002002 dimensionless FLOAT 8 -999 Linear transformation matrix element between image pixel y and focal plane pixel M. polyOrder dimensionless TINYINT 1 255 Polynomial order of astrometric fit between the image pixels and the detector focal plane. pca1x3y0 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^3 y^0) for focal plane L. pca1x2y1 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^2 y^1) for focal plane L. pca1x1y2 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^1 y^2) for focal plane L. pca1x0y3 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^0 y^3) for focal plane L. pca1x2y0 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^2 y^0) for focal plane L. pca1x1y1 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^1 y^1) for focal plane L. pca1x0y2 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^0 y^2) for focal plane L. pca2x3y0 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^3 y^0) for focal plane M. pca2x2y1 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^2 y^1) for focal plane M. pca2x1y2 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^1 y^2) for focal plane M. pca2x0y3 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^0 y^3) for focal plane M. pca2x2y0 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^2 y^0) for focal plane M. pca2x1y1 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^1 y^1) for focal plane M. pca2x0y2 dimensionless FLOAT 8 -999 Polynomial coefficient for the astrometric fit component (x^0 y^2) for focal plane M. processingVersion dimensionless TINYINT 1 NA Data release version.