MMS Fly's Eye Energetic Particle Sensor

FEEPS quicklook plot in SPEDAS

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

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

https://lasp.colorado.edu/mms/sdc/public/datasets/epd/ (EPD Data Products Guide 13Apr16 v4)

FEEPS Data

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

Examples

Electron Data

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

MMS> mms_load_feeps, datatype='electron', trange=['2016-02-15', '2016-02-16'], probe=1, datarate='srvy'

MMS> tplot, 'mms1_epd_feeps_electron_intensity_omni_spin'

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  MMS1 FEEPS electron omni spin data on February 15, 2016

Ion Data

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

MMS> mms_load_feeps, datatype='ion', trange=['2016-02-15', '2016-02-16'], probe=1, datarate='srvy'

MMS> tplot, 'mms1_epd_ion_electron_intensity_omni_spin'

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  MMS1 FEEPS ion omni spin data on February 15, 2016

Quicklook Plots

To create FEEPS Quicklook plots use the crib mms_load_feeps_crib_qlplots.pro This crib will load electron and ion data. It shows the user how to use mms_feeps_pad to calculate the pitch angle distributions. In addition spacecraft ephemeris data, FGM B-field data and data availability are loaded and displayed.

MMS> mms_load_feeps, datatype='ion', trange=['2016-02-15', '2016-02-16'], probe=1, datarate='srvy'

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  MMS1 FEEPS Quick Look data from February 15, 2016

FEEPS Sector Spectrograms

Examples

Sector-Time Spectrograms, No Sun Contamination Removed

To create sector spectrograms of FEEPS data on January 20, 2016:

MMS> mms_load_feeps, trange=['2016-01-20/19:50', '2016-01-20/19:55'], probe=1, data_rate='brst', level='12', /time_clip

MMS> feeps_sector_spec, probe=1, data_rate='brst'

MMS> tplot, ['mms1_epd_feeps_bottom_electron_count_rate_sensorid_3_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_4_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_5_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_10_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_11_sectspec']

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  MMS1 FEEPS Sector-Time Spectrogram on January 20, 2016

Sector-Time Spectrograms, With Sun Contamination removed

To create sector spectrograms of FEEPS data on January 20, 2016:

MMS> mms_load_feeps, trange=['2016-01-20/19:50', '2016-01-20/19:55'], probe=1, data_rate='brst', level='12', /time_clip

MMS> feeps_sector_spec, probe=1, data_rate='brst', /remove_sun

MMS> tplot, ['mms1_epd_feeps_bottom_electron_count_rate_sensorid_3_sun_removed_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_4_sun_removed_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_5_sun_removed_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_10_sun_removed_sectspec', $ 'mms1_epd_feeps_bottom_electron_count_rate_sensorid_11_sun_removed_sectspec']

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  MMS1 FEEPS Sector-Time Spectrogram With Sun Contamination Removed