kai.reduce.kai_util

Attributes

_nargs

Functions

`kailog`(directory)
`makelog`(directory[, outfile, instrument])	Make an electronic log for all the FITS files in the
`getAotsxy`(hdr)
`pix2radec`()
`radec2pix`(radec, phi, scale, posRef)	Determine pixel shifts from true RA and Dec positions.
`aotsxy2pix`(aotsxy, scale, aotsxyRef[, inst_angle])
`pcuxy2pix`(pcuxy, phi, scale, pcuxyRef)	Determine pixel shifts from true RA and Dec positions.
`pix2xyarcsec`(xypix, phi, scale, sgra)	Determine E and N offsets from Sgr A* (in arcsec) from
`xyarcsec2pix`(xyarcsec, phi, scale)	Determine pixel shifts from E and N offsets from Sgr A*.
`rotate_coo`(x, y, phi)	Rotate the coordinates in the *.coo files for data sets
`getScale`(hdr[, instrument])
`getPA`(hdr[, instrument])
`getCentralWavelength`(hdr[, instrument])
`calcOverhead`(tint, coadds, ndithers, nframes, reads[, ...])
`plotKeyword`(keyword1, keyword2, imgList)	Pass in a file containing a list of images. For each of these

Module Contents

kai.reduce.kai_util.kailog(directory)[source]

kai.reduce.kai_util.makelog(directory, outfile='image_log.txt', instrument=instruments.default_inst)[source]: Make an electronic log for all the FITS files in the specified directory.

kai.reduce.kai_util._nargs[source]

kai.reduce.kai_util.getAotsxy(hdr)[source]

kai.reduce.kai_util.pix2radec()[source]

kai.reduce.kai_util.radec2pix(radec, phi, scale, posRef)[source]

Determine pixel shifts from true RA and Dec positions.

@param radec: a 2-element list containing the RA and Dec in degrees. @type radec: float list @param phi: position angle (E of N) in degrees. @type phi: float @param scale: arcsec per pixel. @type scale: float @param posRef: 2-element list containing the ra, dec positions (in degrees)

of a reference object.

@type posRef: float list

kai.reduce.kai_util.aotsxy2pix(aotsxy, scale, aotsxyRef, inst_angle=0.0)[source]

kai.reduce.kai_util.pcuxy2pix(pcuxy, phi, scale, pcuxyRef)[source]

Determine pixel shifts from true RA and Dec positions.

@param pcuxy: a 2-element list containing the PCU x and y in mm. @type pcuxy: float list @param phi: position angle (E of N) in degrees. @type phi: float @param scale: mm per pixel. @type scale: float @param pcuxyRef: 2-element list containing the PCU x, y positions (in mm) in the reference position. @type pcuxyRef: float list

kai.reduce.kai_util.pix2xyarcsec(xypix, phi, scale, sgra)[source]

Determine E and N offsets from Sgr A* (in arcsec) from pixel positions and the pixel position of Sgr A*.

xypix: 2-element list containing the RA and Dec in degrees. phi: position angle (E of N) in degrees. scale: arcsec per pixel. sgra: 2-element list containing the pixel position of Sgr A*.

kai.reduce.kai_util.xyarcsec2pix(xyarcsec, phi, scale)[source]

Determine pixel shifts from E and N offsets from Sgr A*.

xyarcsec: 2-element list containing the RA and Dec in degrees. phi: position angle (E of N) in degrees. scale: arcsec per pixel.

kai.reduce.kai_util.rotate_coo(x, y, phi)[source]: Rotate the coordinates in the *.coo files for data sets containing images at different PAs.

kai.reduce.kai_util.getScale(hdr, instrument=instruments.default_inst)[source]

kai.reduce.kai_util.getPA(hdr, instrument=instruments.default_inst)[source]

kai.reduce.kai_util.getCentralWavelength(hdr, instrument=instruments.default_inst)[source]

kai.reduce.kai_util.calcOverhead(tint, coadds, ndithers, nframes, reads, tread=0.181)[source]

kai.reduce.kai_util.plotKeyword(keyword1, keyword2, imgList)[source]: Pass in a file containing a list of images. For each of these images, read out the values of the header keywords specified. Then plot each of the keywords against each other.