Directory: projects/themis/state/cotrans/

Contents

.pro files

dsl2gse.pro

procedure: dsl2gsePurpose: THEMIS coordinate transformations DSL<-->GSE; interpolates, right ascension, declination updates coord_sys atribute of output tplot variable.

gse2sse.pro

procedure: gse2ssePurpose: Coordinate transformation between GSE & SSE coordinates(and the inverse) SSE is defined as: X: Moon->Sun Line Y: Ecliptic North cross X Z: X cross Y GSE is defined as: X: Earth Sun Line(naturally in the ecliptic plane) Y: Z x X Z: Ecliptic Northinputs: name_in: Name of input tplot variable to be transformed or an array of data [t,x,y,z] name_sun_pos: Name of the solar position tplot variable in GEI coordinates or as an array of data [t,x,y,z] name_lun_pos: Name of the lunar position tplot variable in GEI coordinates or as an array of data [t,x,y,z] name_out: Name that the rotated variable should take.

sse2sel.pro

procedure: sse2selPurpose: Coordinate transformation between SSE & SEL coordinates(and the inverse) SSE is defined as: X: Moon->Sun Line Y: Ecliptic North cross X Z: X cross Y SEL is defined as: X: TBD Y: TBD Z: TBDinputs: name_in: Name of input tplot variable to be transformed or as an array of data [t,x,y,z] name_sun_pos: Name of the sun position tplot variable in GEI coordinates or as an array of data [t,x,y,z] name_moon_pos: Name of the moon position tplot variable in GEI coordinates or as an array of data [t,x,y,z] name_lun_att_x: Name of the SEL X-axis tplot variable in GEI coordinates or as an array of data [t,x,y,z] name_lun_att_z: Name of the SEL Z-axis tplot variable in GEI coordinates or as an array of data [t,x,y,z] name_out: Name that the rotated variable should take.

ssl2dsl.pro

procedure: ssl2dslPurpose: despins (spins) THEMIS data SSL<-->DSL; interpolates the spinphase, spin period updates coord_sys atribute of output tplot variable.

thm_cotrans.pro

Procedure: thm_cotransPurpose: Transform between various THEMIS and geophysical coordinate systemskeywords: probe = Probe name.

thm_cotrans_lmn.pro

thm_fac_matrix_make.pro

Procedure: thm_fac_matrix_makePurpose: generates a field aligned coordinate transformation matrixfrom an input B vector array(and sometimes a position vector array)then stores it in a tplot variable.

thm_gsm2lmn_wrap.pro

NAME: THM_GSM2LMN_WRAP PURPOSE: Wrapper transforms THEMIS-generated vector field from GSM to LMN (boundary-normal) coordinate system for magnetopause with help of routine gsm2lmn.pro.