galpy.util.coords.cov_vxyz_to_galcencyl¶
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galpy.util.coords.
cov_vxyz_to_galcencyl
(cov_vxyz, phi, Xsun=1.0, Zsun=0.0)[source]¶ NAME:
cov_vxyz_to_galcencylPURPOSE:
propagate uncertainties in vxyz to galactocentric cylindrical coordinatesINPUT:
cov_vxyz - uncertainty covariance in U,V,W
phi - angular position of star in galactocentric cylindrical coords
OUTPUT:
cov(vR,vT,vz) [3,3]HISTORY:
2018-03-22 - Written - Mackereth (LJMU)
2020-09-21- Moved to coords.py - Mackereth (UofT)