MT Calibration

File Format: FITS binary table

Name: exPhotom-ddddd.par, where ddddd is the int(MJD).

Produced by: excal

Used by: kali, ps, fcalib

Size: 3 * 2880 + 544 * N (rounded up to 2880) bytes, where N is the number of calibrations. For a typical night (one calibration per hour for 10 hours), 14.4 Kb.

Archived? Yes

Description

A set of MT calibration coefficients as produced by one run of excal for a single night.

Primary Header


[an error occurred while processing this directive]

SIMPLE  =                    T
BITPIX  =                    8
NAXIS   =                    0
EXTEND  =                    T
VERSION = 'XXX     '           / Version of software used.
TELESCOP= 'XXX     '           / Telescope with which data was obtained.
MTFRA_ID= 'XXX     '           / Mtframes pipeline run identifier.
EXCAL_ID= 'XXX     '           / Excal pipeline run identifier.
PRISOLVE=                  XXX / 1=fundamentals only used, 0=all primaries used.
SCALE   =                  XXX / Frame scale measured by excal (arcsec/pixel).
PARITY  =                  XXX / Frame parity measured by excal.
PA      =                  XXX / Frame position angle measured by excal (deg).
STDS_VER= 'XXX     '           / Version of MTSTDS used.
[an error occurred while processing this directive]
MJD     =                  XXX / MJD day number of night when data was obtained.
END

Photometric Coefficients Header

There is one HDU of this type. Each row contains a single block of photometric calibration coefficients, valid over the specified time period.

[an error occurred while processing this directive]
XTENSION= 'BINTABLE'          
BITPIX  =                    8
NAXIS   =                    2
NAXIS1  =                  570
NAXIS2  =                  XXX
PCOUNT  =                    0
GCOUNT  =                    1
TFIELDS =                   24
SIGNS   = 'XXX XXX ...'        / Sign for color term: 0=redward, 1=blueward.
COLORFIL= 'XXX XXX ...'        / Filter used to form color.
[an error occurred while processing this directive]
FILTERS = 'u g r i z'          / Filter order in array fields.
[an error occurred while processing this directive]
TFORM1  = '1J      '          
TTYPE1  = 'blockId '           / Coefficient block id.
TFORM2  = '1D      '          
TTYPE2  = 'startMJD'           / Start time at which calibration is valid.
TUNIT2  = 'MJD     '          
TFORM3  = '1D      '          
TTYPE3  = 'midMJD  '           / Mid time at which calibration is valid.
TUNIT3  = 'MJD     '          
TFORM4  = '1D      '          
TTYPE4  = 'endMJD  '           / End time at which calibration is valid.
TUNIT4  = 'MJD     '          
TFORM5  = '1I      '          
TTYPE5  = 'photometric'        / Photometric? (-1=undetermined, 0=no, 1=yes)
TFORM6  = '5D      '          
TTYPE6  = 'a       '           / Zero-point.
TFORM7  = '5E      '          
TTYPE7  = 'aErr    '           / Zero-point. (error)
TFORM8  = '5D      '          
TTYPE8  = 'b       '           / Color-term.
TFORM9  = '5E      '          
TTYPE9  = 'bErr    '           / Color-term. (error)
TFORM10 = '5D      '          
TTYPE10 = 'c       '           / Color x extinction term.
TFORM11 = '5E      '          
TTYPE11 = 'cErr    '           / Color x extinction term. (error)
TFORM12 = '5D      '          
TTYPE12 = 'k       '           / Extinction coefficient.
TFORM13 = '5E      '          
TTYPE13 = 'kErr    '           / Extinction coefficient. (error)
TFORM14 = '5D      '          
TTYPE14 = 'aa      '           / Zero-point unprimed.
TFORM15 = '5E      '          
TTYPE15 = 'aaErr   '           / Zero-point unprimed. (error)
TFORM16 = '5D      '          
TTYPE16 = 'bb      '           / Color-term unprimed.
TFORM17 = '5E      '          
TTYPE17 = 'bbErr   '           / Color-term unprimed. (error)
TFORM18 = '5D      '          
TTYPE18 = 'cc      '           / Color x extinction term unprimed.
TFORM19 = '5E      '          
TTYPE19 = 'ccErr   '           / Color x extinction term unprimed. (error)
TFORM20 = '5D      '          
TTYPE20 = 'kk      '           / Extinction coefficient unprimed.
TFORM21 = '5E      '          
TTYPE21 = 'kkErr   '           / Extinction coefficient unprimed. (error)
TFORM22 = '5J      '          
TTYPE22 = 'nStars  '           / Number of stars used in fit.
TFORM23 = '5E      '          
TTYPE23 = 'chisq   '           / Reduced chi-squared of the fit.
TFORM24 = '5E      '          
TTYPE24 = 'rms     '           / RMS residuals.
[an error occurred while processing this directive]
END

Star-Match Header

Matches up each observed star used in the solution with its matching star in the primary catalog, and gives its solved magnitude for this pipeline run. There is one HDU of this type.

[an error occurred while processing this directive]

XTENSION= 'BINTABLE'          
BITPIX  =                    8
NAXIS   =                    2
NAXIS1  =                  166
NAXIS2  =                  XXX
PCOUNT  =                    0
GCOUNT  =                    1
TFIELDS =                    9
[an error occurred while processing this directive]
FILTERS = 'u g r i z'          / Filter order in array fields.
[an error occurred while processing this directive]
TFORM1  = '1J      '          
TTYPE1  = 'blockId '           / Coefficient block id.
TFORM2  = '1J      '          
TTYPE2  = 'seqId   '           / MT sequence number.
TFORM3  = '1J      '          
TTYPE3  = 'star    '           / Unique ID within a frame.
TFORM4  = '20A     '          
TTYPE4  = 'standard'           / Unique name of primary standard star.
TFORM5  = '5E      '          
TTYPE5  = 'mag     '           / Magnitudes determined by this excal run.
TUNIT5  = 'mag     '          
TFORM6  = '5E      '          
TTYPE6  = 'magErr  '           / Magnitudes determined by this excal run. (error
TUNIT6  = 'mag     '          
TFORM7  = '5J      '
TTYPE7  = 'saturated'          / 0=not saturated, 1=A/D converter saturation
COMMENT                        / 2=Full well saturation, A/D and full well
TFORM8  = '1J      '          
TTYPE8  = 'isPhotoStandard'    / 1=fundamental, 0=primary, -1=monitor
TFORM9  = '5J      '
TTYPE9  = 'use_in_solution'    / 1=used, 0=not used, -1=completely ignored
[an error occurred while processing this directive]

Fitted-primaries Header

Lists the fitted magnitudes for each non-fundamental primary star, averaged over all observations for that night. This HDU is present only if the PDU keyword "PRISOLVE" is set to 1. There is one HDU of this type.

XTENSION= 'BINTABLE'          
BITPIX  =                    8
NAXIS   =                    2
NAXIS1  =                   80
NAXIS2  =                  XXX
PCOUNT  =                    0
GCOUNT  =                    1
TFIELDS =                    4
FILTERS = 'u g r i z'          / Filter order in array fields.
TFORM1  = '20A     '          
TTYPE1  = 'standard'           / Unique name of primary standard star.
TFORM2  = '5E      '          
TTYPE2  = 'mag     '           / Magnitudes fitted by this excal run.
TUNIT2  = 'mag     '          
TFORM3  = '5E      '          
TTYPE3  = 'magErr  '           / Magnitudes fitted by this excal run. (error)
TUNIT3  = 'mag     '          
TFORM4  = '5J      '          
TTYPE4  = 'nStars  '           / Number of stars averaged together.