Field Statistics

File Format: FITS binary table

Name: fpFieldStat-rrrrrr-c-ffff.fit, where rrrrrr is the imaging run number, c is the column location in the Imaging Array of the CCD which acquired the data (1-6), and ffff is the field number.

Produced by: frames

Used by:

Size: 2 * 2880 + Nfields * 120 bytes, rounded up to the nearest multiple of 2880. Total of 126.72 Kb for a single frames pipeline run with 1000 fields.

Archived? Yes

Description

Contains a statistical summary of the results of the frames pipeline for one field for a single frames pipeline run.

Primary Header


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SIMPLE  =                    T                                              
BITPIX  =                    8                                                  
NAXIS   =                    0                                                  
EXTEND  =                    T                                                  
RUN     =                 xxxx / Imaging Run Number                             
CAMCOL  =                    x / Column in imaging camera                       
FIELD   =                   xx / the field reduced                              
FILTERS = 'u g r i z'          / Filters processed                              
REFCOLOR= 'r       '           / Reference Filter                               
VERSION = 'xxxx    '           / Version of software used. 
DERV_VER= 'xxxx    '                                                            
ASTR_VER= 'xxxx    '                                                            
ASTRO_ID= 'xxxx    '           / Astrometric pipeline run identifier.
BIAS_ID = 'PS      '           / Bias pipeline run identifier.            
FRAME_ID= 'xxxx    '           / Frames pipeline run identifier.      
KO_VER  = 'xxxxx   '           / Version of known object catalog used.
PS_ID   = 'xxxxx   '           / Postage stamp pipeline run identifier. 
END          
[an error occurred while processing this directive]

Table Header

There is one HDU of this type. It contains the actual field statistics. There is only one entry (for the one field), thus NAXIS2 below is always 1.

[an error occurred while processing this directive]
XTENSION= 'BINTABLE'          
BITPIX  =                    8
NAXIS   =                    2
NAXIS1  =                  500
NAXIS2  =                  XXX
PCOUNT  =                    0
GCOUNT  =                    1
TFIELDS =                   28
[an error occurred while processing this directive]
[an error occurred while processing this directive]
TFORM1  = '1J      '          
TTYPE1  = 'status  '           / Processed?
TFORM2  = '5E      '          
TTYPE2  = 'rowOffset'          / Offset to add to transformed row coordinates.
TUNIT2  = 'pixels  '          
TFORM3  = '5E      '          
TTYPE3  = 'colOffset'          / Offset to add to transformed column coordinates
TUNIT3  = 'pixels  '          
TFORM4  = '1J      '          
TTYPE4  = 'nObjects'           / Number of objects detected.
TFORM5  = '1J      '          
TTYPE5  = 'nChild  '           / Number of children in the field.
TFORM6  = '1J      '          
TTYPE6  = 'nStars  '           / Number of objects classified as stars.
TFORM7  = '1J      '          
TTYPE7  = 'nGals   '           / Number of objects classified as galaxies.
TFORM8  = '5J      '          
TTYPE8  = 'saturation_level'   / Saturation level.
TFORM9  = '5E      '          
TTYPE9  = 'neff_psf'           / Effective area of the point spread function.
TUNIT9  = 'pixels  '          
TFORM10 = '5E      '          
TTYPE10 = 'sky_psp '           / Sky from the point spread function.
TUNIT10 = 'DNs/pixel'         
TFORM11 = '5E      '          
TTYPE11 = 'sky_frames'         / Global sky value in the corrected frame.
TUNIT11 = 'DNs/pixel'         
TFORM12 = '5E      '          
TTYPE12 = 'sky_frames_sub'     / Global sky value after object subtraction.
TUNIT12 = 'DNs/pixel'         
TFORM13 = '5E      '          
TTYPE13 = 'sigPix  '           / Clipped sigma of pixel values in corrected fram
TUNIT13 = 'DNs     '          
TFORM14 = '5E      '
TTYPE14 = 'deV_ap_correction'
TFORM15 = '5E      '
TTYPE15 = 'deV_ap_correctionErr'
TFORM16 = '5E      '
TTYPE16 = 'exp_ap_correction'
TFORM17 = '5E      '
TTYPE17 = 'exp_ap_correctionErr'
TFORM18 = '5E      '
TTYPE18 = 'deV_model_ap_correction'
TFORM19 = '5E      '
TTYPE19 = 'deV_model_ap_correctionErr'
TFORM20 = '5E      '
TTYPE20 = 'exp_model_ap_correction'
TFORM21 = '5E      '
TTYPE21 = 'exp_model_ap_correctionErr'
TFORM22 = '5J      '          
TTYPE22 = 'nCR     '           / Number of cosmic rays detected on the frame.
TFORM23 = '5J      '          
TTYPE23 = 'nBrightObj'         / Number of bright objects detected.
TFORM24 = '5J      '          
TTYPE24 = 'nFaintObj'          / Number of faint objects detected.
TFORM25 = '5E      '          
TTYPE25 = 'median_fiberColor'  / Median fiber colors of objects.
TFORM26 = '5E      '          
TTYPE26 = 'median_psfColor'    / Median PSF colors of objects.
TFORM27 = '5E      '          
TTYPE27 = 'q       '           / Mean Stokes Q parameter on the frame?
TFORM28 = '5E      '          
TTYPE28 = 'u       '           / Mean Stokes U parameter on the frame?
TFORM29 = '5E      '                                                            
TTYPE29 = 'adopted_cond3_fac2'                                                  
[an error occurred while processing this directive]
END

FIELD_FLAGS Enum Header

Lists the possible enumerated values for the "status" field in HDU 1.

XTENSION= 'BINTABLE'                                                            
BITPIX  =                    8                                                  
NAXIS   =                    2                                                  
NAXIS1  =                   66                                                  
NAXIS2  =                    5                                                  
PCOUNT  =                    0                                                  
GCOUNT  =                    1                                                  
TFIELDS =                    3                                                  
TYPENAME= 'FIELD_FLAGS'                                                         
TFORM1  = '31A     '                                                            
TTYPE1  = 'defName '                                                            
TFORM2  = '31A     '                                                            
TTYPE2  = 'attributeName'                                                       
TFORM3  = '1J      '                                                            
TTYPE3  = 'Value   '                                                            
END