spacepy.irbempy.find_Bmirror¶
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spacepy.irbempy.
find_Bmirror
(ticks, loci, alpha, extMag='T01STORM', options=[1, 0, 0, 0, 0], omnivals=None)[source]¶ call find_mirror_point from irbem library and return a dictionary with values for Blocal, Bmirr and the GEO (cartesian) coordinates of the mirror point
Parameters: ticks : Ticktock class
containing time information
loci : Coords class
containing spatial information
alpha : array-like
containing the pitch angles
extMag : str
optional; will choose the external magnetic field model possible values [‘0’, ‘MEAD’, ‘T87SHORT’, ‘T87LONG’, ‘T89’, OPQUIET’, ‘OPDYN’, ‘T96’, ‘OSTA’, ‘T01QUIET’, ‘T01STORM’, ‘T05’, ‘ALEX’, ‘TS07’]
options : array-like (optional)
length=5 : explained in Lstar
omnivals : dict (optional)
if not provided, will use lookup table (see get_Lstar documentation for further explanation)
Returns: results : dictionary
containing keys: Blocal, Bmirr, GEOcar
See also
Examples
>>> t = Ticktock(['2002-02-02T12:00:00', '2002-02-02T12:10:00'], 'ISO') >>> y = Coords([[3,0,0],[2,0,0]], 'GEO', 'car') >>> ib.find_Bmirror(t,y,[90,80,60,10]) {'Blocal': array([ 0., 0.]), 'Bmirr': array([ 0., 0.]), 'loci': Coords( [[ NaN NaN NaN] [ NaN NaN NaN]] ), dtype=GEO,car, units=['Re', 'Re', 'Re']}