European Helio- and Asteroseismology Network (HELAS)

    Local Helioseismology Network Activity








    Carrington Rotation 2024

    Header Explanation.

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    SIMPLE  =                    T / file does conform to FITS standard
    BITPIX  =                  -32 / number of bits per data pixel
    NAXIS   =                    3 / number of data axes
    NAXIS1  =                  128 / Number of pixels in x
    NAXIS2  =                  128 / Number of pixels in y
    NAXIS3  =                 1664 / Length of the time serie
    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
    HISTORY Task INPUTPAR_GET (2004/02/20 18:22:58, V1.0)
    COMMENT #-------------
    COMMENT # Verbose Mode
    COMMENT #-------------
    VERBOSE =                    T / Display info (T/F)?
    COMMENT #-------------
    COMMENT # Input Images
    COMMENT #-------------
    FROOT   = '/tarat/vol3/mring/020328t0755_1/mi/splitup.lst' / name of file with l
    COMMENT name of file with list of images
    FREF    = '/tarat/vol3/merge/020328/mrvzi020328t2146.fits.gz' / Reference image
    ORIENT  =                    1 / Orientation: 1>Clock 2>Counter
    W_INST  =                 31.7 / sideral rot. = rot. on image + ? (nHz)
    COMMENT #-----------------------
    COMMENT # Region data input file
    COMMENT #-----------------------
    FRG     = '/usr/local/gong++/lib/dense_pack.rg' / Name of input region ascii dat
    COMMENT #-------------
    COMMENT #Tracking mode
    COMMENT #-------------
    COMMENT #1>No tracking     :  images rotate  beneath window
    COMMENT #2>Carrington rate :  area  tracked at equatorial Carrington
    COMMENT #                     rate independent of latitude.
    COMMENT #3>Central latitude:  area tracked at rotation rate of  the
    COMMENT #                     center of the area.
    COMMENT #4>All latitudes   :  each point of the area is tracked at the
    COMMENT #                     rotation rate of its latitude.
    COMMENT #
    COMMENT #For mode 3 & 4 the rotation rate at cos(colatitue)=mu is:
    COMMENT #    OMEGA(mu)=OMEGA0-0MEGA2*mu^2-OMEGA4*mu^4
    MODETRK =                    3 / 1>No  2>Car rate 3>Central lat.  4>All lat.
    OMEGA0  =               451.43 / 1st coeff. of sideral diff. rot. rate (nHz)
    OMEGA2  =                54.77 / 2nd coeff. of sideral diff. rot. rate (nHz)
    OMEGA4  =                80.17 / 3rd coeff. of sideral diff. rot. rate (nHz)
    COMMENT #-------------
    COMMENT #Interpolation
    COMMENT #-------------
    INTERPOL=                    2 / Interpol 1>spline 2>Lookup 1 3>tapered sinc 4
    SPLM    =                    4 / Spline order for spline interpolation
    SPLK    =                    1 / Multiplicity of nodal points for spline inter
    SPLP    =                10000 / Lookup option grid Resolution
    COMMENT #--------------
    COMMENT #Spatial Filter
    COMMENT #--------------
    SURF_FIT=                    F / Fit & remove surface (spatial filter) (T/F)?
    COMMENT #-------------
    COMMENT #Output Files
    COMMENT #-------------
    OUT_ROOT= 'rmi     '           / Root name for output cubes (3 characters)
    HISTORY Task SPLITUP (2004/02/20 18:23:34, V0.1)
    ITIME   =                  60. / [s] Time interval per time slot
    L0_REF  =              14.9771 / Carrington Long. of CMD 0 on Reference image
    TS_START= '2002/03/28 07:55:16' / Start day/time of the time serie
    TS_END  = '2002/03/29 11:38:16' / End   day/time of the time serie
    TS_REF  = '2002/03/28 21:46:16' / day/time of Reference Image
    DTYPE   = 'V       '           / Data Type V: Velocity I:Intensity
    SITE    = 'MR      '           / SITE of the reference Image
    MAPSCALE=                0.125 / [deg] grid spacing
    LNG0    =                -22.5 / [deg] region center CMD on  reference image
    LAT0    =                -52.5 / [deg] central latitude  of the region
    GRID    =                    2 / 1>Lat-Long 2>Great Circle
    END
    
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