timespan,'7 11 07/10',2,/hours
sc='a'
;
thm_load_state,probe=sc,/get_supp
thm_load_fit,probe=sc,data='fgs',coord='gsm',suff='_gsm'
thm_load_mom,probe=sc ; L2: onboard processed moms
thm_load_esa,probe=sc ; L2: ground processed gmoms, omni spectra
;
tplot,'tha_fgs_gsm tha_pe?m_density tha_pe?r_en_eflux'
;
stop
;
trange=['07-11-07/11:00','07-11-07/11:30']
thm_part_getspec, probe=['a'], trange=trange, angle='gyro', $
                  pitch=[45,135], other_dim='mPhism', $
;                 /normalize, $
                  data_type=['peir'], regrid=[32,16]
;
tplot,'tha_peir_an_eflux_gyro tha_fgs_gsm tha_pxxm_pot tha_pe?m_density tha_pe?r_en_eflux'
;


; Notes: ( from thm_fac_matrix_make.pro )
;   ************For all transformations Z = B************
;
;   valid second coord(other_dim) options:
;
;         'Xgse', (DEFAULT) translates from gse or gsm into FAC
;                    Definition(works on GSE, or GSM):
;                    X Axis = on plane defined by Xgse - Z
;                    Second coordinate definition: Y = Z x X_gse
;                    Third coordinate, X completes orthogonal RHS
;                    (right hand system) triad: XYZ
;         'Rgeo',translate from geo into FAC using radial position vector
;                    Rgeo is radial position vector, positive radialy outwards.
;                    Second coordinate definition: Y = Z x Rgeo (westward)
;                    Third coordinate, X completes orthogonal RHS XYZ.
;         'mRgeo',translate into FAC using radial position vector
;                    mRgeo is radial position vector, positive radially inwards.
;                    Second coordinate definition: Y = Z x mRgeo (eastward)
;                    Third coordinate, X completes orthogonal RHS XYZ.
;         'Phigeo', translate into FAC using azimuthal position vector
;                    Phigeo is the azimuthal geo position vector, positive Eastward
;                    First coordinate definition: X = Phigeo x Z (positive outwards)
;                    Second coordinate, Y ~ Phigeo (eastward) completes orthogonal RHS XYZ
;         'mPhigeo', translate into FAC using azimuthal position vector
;                    mPhigeo is minus the azimuthal geo position vector; positive Westward
;                    First coordinate definition: X = mPhigeo x Z (positive inwards)
;                    Second coordinate, Y ~ mPhigeo (Westward) completes orthogonal RHS XYZ
;         'Phism', translate into FAC using azimuthal Solar Magnetospheric vector.
;                 Phism is "phi" vector of satellite position in SM coordinates.
;                 Y Axis = on plane defined by Phism-Z, normal to Z
;                 Second coordinate definition: X = Phism x Z
;                 Third completes orthogonal RHS XYZ
;         'mPhism', translate into FAC using azimuthal Solar Magnetospheric vector.
;                 mPhism is minus "phi" vector of satellite position in SM coordinates.
;                 Y Axis = on plane defined by Phism-Z, normal to Z
;                 Second coordinate definition: X = mPhism x Z
;                 Third completes orthogonal RHS XYZ
;         'Ygsm', translate into FAC using cartesian Ygsm position as other dimension.
;                 Y Axis on plane defined by Ygsm and Z
;                 First coordinate definition: X = Ygsm x Z
;                 Third completes orthogonal RHS XYZ