spacepy.empiricals.getPlasmaPause(ticks, model='M2002', LT='all', omnivals=None)[source]

Plasmapause location model(s)

CA1992 – Carpenter, D. L., and R. R. Anderson, An ISEE/whistler model of equatorial electron density in the magnetosphere, J. Geophys. Res., 97, 1097, 1992. M2002 – Moldwin, M. B., L. Downward, H. K. Rassoul, R. Amin, and R. R. Anderson, A new model of the location of the plasmapause: CRRES results, J. Geophys. Res., 107(A11), 1339, doi:10.1029/2001JA009211, 2002. RT1970 – Rycroft, M. J., and J. O. Thomas, The magnetospheric plasmapause and the electron density trough at the alouette i orbit, Planetary and Space Science, 18(1), 65-80, 1970


TickTock object of desired times

Lpp_modelstring, optional

‘CA1992’ or ‘M2002’ (default) CA1992 returns the Carpenter and Anderson model, M2002 returns the Moldwin et al. model

LTint, float

requested local time sector, ‘all’ is valid option

omnivalsspacepy.datamodel.SpaceData, dict

dict-like containing UTC (datetimes) and Kp keys


Plasmapause radius in Earth radii


If the CA1992 model is called with LT as it is not implemented


>>> import spacepy.time as spt
>>> import spacepy.empiricals as emp
>>> ticks = spt.tickrange('2002-01-01T12:00:00','2002-01-04T00:00:00',.25)
>>> emp.getPlasmaPause(ticks)
array([ 6.42140002,  6.42140002,  6.42140002,  6.42140002,  6.42140002,
    6.42140002,  6.42140002,  6.26859998,  5.772     ,  5.6574    ,
    5.6574    ])