ABOUT LAMBDA

FITS Header

Primary Header

SIMPLE  =                    T /Primary Header created by MWRFITS v1.2          
BITPIX  =                    8 /8-bit bytes                                     
NAXIS   =                    0 / Number of data axes                            
EXTEND  =                    T /Extensions may be present                       
DATE    = '2003-07-27T16:46:43' / Table creation date                           
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy  
COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H    
BUNIT   = 'R       '           /                                                
SAMPLED =                    F / Is image well sampled?                         
FWHM    =                    6 / FWHM of Gaussian beam [arcmin]                 
VERSION = '1.1     '           /                                                
COMMENT --------------------------------------------------------                
COMMENT WHAM: The Wisconsin H-Alpha Mapper                                      
COMMENT   funded by the National Science Foundation.                            
COMMENT   - Reynolds, Tufte, Haffner, Jaehnig, & Percival. 1998,                
COMMENT      Publ. Astron. Soc. Aust., 15, 14                                   
COMMENT   - Tufte, 1998. PhD Thesis, University of Wisconsin                    
COMMENT   - Haffner, 1999. PhD Thesis, University of Wisconsin                  
COMMENT                                                                         
COMMENT  http://www.astro.wisc.edu/wham/                                        
COMMENT --------------------------------------------------------                
COMMENT VTSS: The Virginia Tech Spectral-Line Survey,                           
COMMENT   supported by the National Science Foundation                          
COMMENT   and the Horton Foundation.                                            
COMMENT   - Brian Dennison, John Simonetti, Gregory Topasna.                    
COMMENT                                                                         
COMMENT  http://www.phys.vt.edu/~halpha/                                        
COMMENT --------------------------------------------------------                
COMMENT SHASSA: The Southern H-Alpha Sky Survey Atlas                           
COMMENT   - John Gaustad, Peter McCullough, Wayne Rosing,                       
COMMENT      & Dave Van Buren                                                   
COMMENT SHASSA is supported by National Science Foundation                      
COMMENT grants AST-9529057, AST-9900622, and AST-9874670,                       
COMMENT by NASA Contract NAS7-1260, and by Las Cumbres Obs.,                    
COMMENT Dudley Observatory, the Fund for Astrophysical Research,                
COMMENT Research Corporation, the University of Illinois,                       
COMMENT and Swarthmore College.                                                 
COMMENT                                                                         
COMMENT  http://amundsen.swarthmore.edu/SHASSA/                                 
COMMENT --------------------------------------------------------                
COMMENT                                                                         
COMMENT Bit  Name       Comments                                                
COMMENT ---  ---------  -------------------------------------------             
COMMENT   0  'WHAM'     WHAM data used (Wisconsin)                              
COMMENT   1  'VTSS'     Virginia Tech Spectral line Survey                      
COMMENT   2  'SHASSA'   Southern Halpha Sky Survey Atlas                        
COMMENT   3  'STAR'     Star removed                                            
COMMENT   4  'SATUR'    Saturated pixel nearby in continuum exposure            
COMMENT   5  'BRT_OBJ'  Bright star/galaxy - measurements unreliable            
COMMENT   6  'BIG_OBJ'  Near LMC, SMC, or M31; no sources removed               
COMMENT   7  'HI_VEL'   High Velocity in WHAM data                              
COMMENT                                                                         
COMMENT  Composite map generated by Douglas Finkbeiner, Princeton               
HISTORY  Reprojected to HEALPIX on Sun Jul 27 12:46:42 2003                     
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)                           
END                                                                             

H-alpha bitmask

XTENSION= 'BINTABLE'           /Written by IDL:  Sun Jul 27 12:46:42 2003       
BITPIX  =                    8 /                                                
NAXIS   =                    2 /Binary table                                    
NAXIS1  =                    1 /Number of bytes per row                         
NAXIS2  =              3145728 /Number of rows                                  
PCOUNT  =                    0 /Random parameter count                          
GCOUNT  =                    1 /Group count                                     
TFIELDS =                    1 /Number of columns                               
COMMENT                                                                         
COMMENT  *** End of mandatory fields ***                                        
COMMENT                                                                         
EXTNAME = 'H-alpha bitmask'    /                                                
DATE    = '2003-07-27T16:46:43' / Table creation date                           
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)                           
COMMENT                                                                         
COMMENT  *** Column names ***                                                   
COMMENT                                                                         
TTYPE1  = 'MASK    '           /                                                
COMMENT                                                                         
COMMENT  *** Column formats ***                                                 
COMMENT                                                                         
TFORM1  = 'B       '           /                                                
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