spacepy.irbempy.find_magequator¶
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spacepy.irbempy.
find_magequator
(ticks, loci, extMag='T01STORM', options=[1, 0, 0, 0, 0], omnivals=None)[source]¶ call find_magequator from irbem library and return a dictionary with values for Bmin and the GEO (cartesian) coordinates of the magnetic equator
Parameters: - ticks (Ticktock class) : containing time information
- loci (Coords class) : containing spatial information
- extMag (string) : 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 (optional list or array of integers length=5) : explained in Lstar
- omni values as dictionary (optional) : if not provided, will use lookup table
- (see Lstar documentation for further explanation)
Returns: - results (dictionary) : containing keys: Bmin, Coords instance with GEO coordinates of
the magnetic equator
See also
get_Lstar
,get_Bfield
,find_Bmirr
Examples
>>> t = Ticktock(['2002-02-02T12:00:00', '2002-02-02T12:10:00'], 'ISO') >>> y = Coords([[3,0,0],[2,0,0]], 'GEO', 'car') >>> op.find_magequator(t,y) {'Bmin': array([ 945.63652413, 3373.64496167]), 'loci': Coords( [[ 2.99938371 0.00534151 -0.03213603] [ 2.00298822 -0.0073077 0.04584859]] ), dtype=GEO,car, units=['Re', 'Re', 'Re']}