European Space Agency

Royal Belgian Institute for Aeronomy

lstar_phi1 - convert between L* to $\varphi$

subroutine  lstar_phi1(ntime, whichinv, options, year, day, lstar, phi)

Parameters:

• ntime [integer4,in] :: number of locations

• whichinv [integer4,in] :: 0 - L* to $\varphi$; 1 - $\varphi$ to L*

• options (5) [integer4,in] :: control options for calculation

• year (ntime) [integer4,in] :: years for locations

• doy (ntime) [integer4,in] :: day of year for locations

• lstar (ntime) [real8,in/out] :: Roederer Lstar [Earth radii]

• phi (ntime) [real8,in/out] :: $2\pi B_0/L^{\ast }$ [nT Re2]

Description

Converts either L* to $\varphi$ or from $\varphi$ to L*.

IRBEM subroutine documentation

IRBEM Common argument definitions

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UNILIB/tags/v3.02