ABOUT LAMBDA

FITS Header

Primary Header

SIMPLE  =                    T / file does conform to FITS standard             
BITPIX  =                   32 / number of bits per data pixel                  
NAXIS   =                    0 / number of data axes                            
EXTEND  =                    T / FITS dataset may contain extensions            
COMMENT   FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT   and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H 
DATE    = '2012-07-09T15:58:19' /file creation date (YYYY-MM-DDThh:mm:ss UT)    
TELESCOP= 'WMAP    '           /Wilkinson Microwave Anisotropy Probe            
REFERENC= 'WMAP Explanatory Supplement:  http://lambda.gsfc.nasa.gov/' /        
OBJECT  = 'ALL-SKY '           / Portion of sky given                           
EQUINOX =               2000.0 / Equinox of coordinates                         
COMMENT This file contains WMAP nine-year coadded 1 deg. smoothed Intensity (I) 
COMMENT Res 9 skymap for the differencing assembly indicated by the             
COMMENT DA keyword.                                                             
PIXTYPE = 'HEALPIX '           / Pixel algorithm                                
ORDERING= 'NESTED  '           / Ordering scheme                                
NSIDE   =                  512 /Resolution Parameter                            
NPIX    =              3145728 / # of pixels                                    
FIRSTPIX=                    0 /First pixel (0 based)                           
LASTPIX =              3145727 /Last pixel (0 based)                            
STOKES  = 'I       '           /                                                
DA      = 'Q1      '           /WMAP Differencing Assembly                      
FREQ    = 'Q band  '           /Frequency band                                  
RELEASE = 'DR5     '           /WMAP Release                                    
RESOLUTN=                    9 /Resolution Index                                
SIGMA0_I=        2.24539000000 /                                                
COMMENT Pixel noise in mK may be evaluated from the Nobs field using            
COMMENT the expression:                                                         
COMMENT sigma = sigma0/sqrt(Nobs)                                               
COMMENT sigma0 applies to the entire map and is a scalar value listed           
COMMENT in the header.                                                          
END                                                                             

Archive Map Table

XTENSION= 'BINTABLE'           / binary table extension                         
BITPIX  =                    8 / 8-bit bytes                                    
NAXIS   =                    2 / 2-dimensional binary table                     
NAXIS1  =                    8 / width of table in bytes                        
NAXIS2  =              3145728 / number of rows in table                        
PCOUNT  =                    0 / size of special data area                      
GCOUNT  =                    1 / one data group (required keyword)              
TFIELDS =                    2 / number of fields in each row                   
TTYPE1  = 'TEMPERATURE'        / label for field   1                            
TFORM1  = 'E       '           / data format of field: 4-byte REAL              
TUNIT1  = 'mK,thermodynamic'   / physical unit of field                         
TTYPE2  = 'N_OBS   '           / label for field   2                            
TFORM2  = 'E       '           / data format of field: 4-byte REAL              
TUNIT2  = 'counts  '           / physical unit of field                         
EXTNAME = 'Archive Map Table'  / name of this binary table extension            
DATE    = '2012-07-09T15:58:19' /file creation date (YYYY-MM-DDThh:mm:ss UT)    
PIXTYPE = 'HEALPIX '           / Pixel algorithm                                
ORDERING= 'NESTED  '           / Ordering scheme                                
NSIDE   =                  512 / Resolution parameter                           
FIRSTPIX=                    0 / First pixel (0 based)                          
LASTPIX =              3145727 / Last pixel (0 based)                           
END                                                                             

A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
NASA Official: Dr. Eric R. Switzer
Web Curator: Mr. Michael R. Greason