MMS Fast Plasma Instrument

From SPEDAS Wiki
Revision as of 14:40, 27 May 2016 by Egrimes (talk | contribs) (Undo revision 12389 by Egrimes (talk))
Jump to navigation Jump to search
FPI summary plot in SPEDAS

SPEDAS provides command line and GUI access to the MMS FPI data.

Prior to using these data, please read the FPI Release Notes:

https://lasp.colorado.edu/galaxy/display/mms/FPI+Release+Notes


FPI Moments

For more complete examples, see the FPI crib sheets located in the /mms/examples/ folder.

Examples

Electron Moments Data

To load and plot the MMS1 FPI electron moments data on March 7, 2016:

MMS> mms_load_fpi, datatype='des-moms', trange=['2016-03-07', '2016-03-08'], probe=1

MMS> tplot, 'mms1_des_numberdensity_dbcs_fast'

MMS> tplot, ['mms1_des_energyspectr_omni_avg', 'mms1_des_pitchangdist_avg']

Ion Moments Data

To load and plot the ion density, along with the omni-directional spectra on March 7, 2016:

MMS> mms_load_fpi, datatype='dis-moms', trange=['2016-03-07', '2016-03-08'], probe=1

MMS> tplot, ['mms1_dis_numberdensity_dbcs_fast', 'mms1_dis_energyspectr_omni_avg']

FPI Distributions

SPEDAS can also be used to load and generate spectra from the FPI distribution functions.

Examples

Electron Distribution Data

To load the electron data:

MMS> mms_load_fpi, probe=1, trange=['2015-10-16/13:02:30', '2015-10-16/13:07:30'], data_rate='brst', datatype='des-dist'

Generate the energy spectra and pitch angle distributions:

MMS> mms_part_products, 'mms1_des_dist_brst', trange=['2015-10-16/13:02:30', '2015-10-16/13:07:30'], outputs=['energy','pa']

Ion Distribution Data

FPI 2D Slices

FPI 3D Slices

Acknowledgements