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Last modified: Mon Aug 25 18:17:19 2025.

# Directory Listing of Routines

# projects/goes/particles

- GOES_GET_DIST
- GOES_PART_PRODUCTS
- GOES_PART_PRODUCTS_CRIB_SHEET
- GOES_PGS_MAKE_FAC[1]
- GOES_PGS_MAKE_FAC[2]
- GOES_PGS_MAKE_FAC[2]
- GOES_PGS_MAKE_FAC[3]
  Generate the field aligned coordinate transformation matrix

# Routine Descriptions

## GOES_GET_DIST

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    Procedure:
      goes_get_dist

    Purpose:
      Loads GOES MAGED and MAGPD data into standard SPEDAS particle structures
      and returns pointer (or struct array) for use with goes_part_products
      and spd_slice2d.

    Calling Sequence:
      data = goes_get_dist( probe=probe, datatype=datatype
                            [,trange=trange] [,index=index]
                            [/structure] [,/uncorrected] )

    Input:
      probe:  probe designation, e.g. '15'
      datatype:  data type, 'maged' or magpd'
      trange:  (optional) 2-element time range, all loaded data used if not set
      index:  (optional) specify index/indices of sample(s) to return, supercedes trange
      times:  flag to return array of currently loaded sample times
      structure:  flag to return structure array instead of pointer to structure array
      uncorrected:  flag to use dtc_uncor data

    Output:
      return value:  pointer to structure array (defualt)
                     structure array (/structure)
                     array of numerical times (/times)
                     0 - if error occurred

    Notes:

    $LastChangedBy: jimm $
    $LastChangedDate: 2019-07-16 15:30:48 -0700 (Tue, 16 Jul 2019) $
    $LastChangedRevision: 27472 $
    $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/goes/particles/goes_get_dist.pro $

(See projects/goes/particles/goes_get_dist.pro)

## GOES_PART_PRODUCTS

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    Procedure:
      goes_part_products

    Purpose:
      Generate particle spectrograms for GOES MAGED/MAGPD data.

    Data Products:
      'energy' - energy spectrogram
      'phi' - azimuthal spectrogram
      'theta' - latitudinal spectrogram
      'gyro' - gyrophase spectrogram
      'pa' - pitch angle spectrogram

    Calling Sequence:
      goes_part_products, probe=probe, datatype=datatype [,trange=trange] [outputs=outputs] ...

    Example Usage:
      -energy, phi, and theta spectrograms
        goes_part_products, probe='15', datatype='maged', outputs='phi theta energy'

      -field aligned spectrograms
        goes_part_products, probe='15', datatype='maged', output='pa gyro', $
                           mag_name = 'g15_H_enp_1'

      -limit range of input data (gyro and pa limits do not affect phi/theta spectra)
        goes_part_products, probe='15', datatype='maged', output = 'energy pitch', $
                           energy = [15,1e5], $  ;eV
                           pitch = [45,135]

    Input Keywords:
      probe:  Spacecraft designation, '13', '14', or '15'
      datatype:  Data type, 'maged' or magpd'

      trange:  Two element time range [start,end]
      outputs:  List of requested outputs, array or space separated list, default='energy'
                Valid entries: 'energy', 'phi', 'theta', 'pa', 'gyro'

      energy:  Two element energy range [min,max], in eV
      phi:  Two element phi range [min,max], in degrees, spacecraft spin plane
      theta:  Two element theta range [min,max], in degrees, latitude from spacecraft spin plane
      pitch:  Two element pitch angle range [min,max], in degrees, magnetic field pitch angle
      gyro:  Two element gyrophase range [min,max], in degrees, gyrophase

      mag_name:  Tplot variable containing magnetic field data for moments and FAC transformations

      fac_type:  Select the field aligned coordinate system variant.
                 Existing options: 'phigeo', 'mphigeo' (default), 'rgeo'
      regrid:  Two element array specifying the resolution of the field-aligned data
               over a full sphere [n_gyro,n_pitch], default is [10,5]

      suffix:  Suffix to append to output tplot variable names

      datagap:  Setting for tplot variables, controls how long a gap must be before it is drawn.
                (can also manually degap)

      display_object:  Object allowing dprint to export output messages
      uncorrected: use uncorrected data
      g_interpolate: interpolate uncorrected data

    Output Keywords:
      tplotnames:  List of tplot variables that were created
      get_data_structures:  Set to named variable to return structures directly when
                            generating field aligned outputs.  This may considerably
                            slow the process!
      error:  Error status flag for calling routine, 1=error 0=success

    Notes:

    $LastChangedBy: egrimes $
    $LastChangedDate: 2017-04-11 09:42:10 -0700 (Tue, 11 Apr 2017) $
    $LastChangedRevision: 23134 $
    $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/goes/particles/goes_part_products.pro $

(See projects/goes/particles/goes_part_products.pro)

## GOES_PART_PRODUCTS_CRIB_SHEET

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    Procedure:
      goes_part_products_crib_sheet

    Purpose:
      Demonstrate generation of spectrograms from GOES MAGED and MAGPD data.

    $LastChangedBy: egrimes $
    $LastChangedDate: 2017-04-11 09:42:10 -0700 (Tue, 11 Apr 2017) $
    $LastChangedRevision: 23134 $
    $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/goes/particles/goes_part_products_crib_sheet.pro $

(See projects/goes/particles/goes_part_products_crib_sheet.pro)

## GOES_PGS_MAKE_FAC[1]

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     Get basis aligned with projection of rgeo (x)

(See projects/goes/particles/goes_pgs_make_fac.pro)

## GOES_PGS_MAKE_FAC[2]

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     Get basis aligned with projection of phigeo (y)

(See projects/goes/particles/goes_pgs_make_fac.pro)

## GOES_PGS_MAKE_FAC[2]

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     Get basis aligned with projection of mphigeo (y)

(See projects/goes/particles/goes_pgs_make_fac.pro)

## GOES_PGS_MAKE_FAC[3]

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    PROCEDURE:
      goes_pgs_make_fac

    PURPOSE:
      Generate the field aligned coordinate transformation matrix

    Inputs:
      times:  the time grid of the particle data
      mag_tvar_in:  tplot variable containing the mag data
      fac_type:  field aligned coordinate transform type (only mphigeo, atm)
      display_object:  (optional) dprint display object

    Outputs:
      fac_output:  time series of field aligned coordinate transform matrices
                   undefined in case of error

    Notes:

    $LastChangedBy: egrimes $
    $LastChangedDate: 2017-04-11 09:42:10 -0700 (Tue, 11 Apr 2017) $
    $LastChangedRevision: 23134 $
    $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/goes/particles/goes_pgs_make_fac.pro $

(See projects/goes/particles/goes_pgs_make_fac.pro)