choclo.point.gravity_e

choclo.point.gravity_e(easting_p, northing_p, upward_p, easting_q, northing_q, upward_q, mass)

Easting component of the gravitational acceleration due to a point source

Returns the easting component of the gravitational acceleration produced by a single point source on a single computation point

Parameters

• easting_p (float) – Easting coordinate of the observation point in meters.

• northing_p (float) – Northing coordinate of the observation point in meters.

• upward_p (float) – Upward coordinate of the observation point in meters.

• easting_q (float) – Easting coordinate of the point source in meters.

• northing_q (float) – Northing coordinate of the point source in meters.

• upward_q (float) – Upward coordinate of the point source in meters.

• mass (float) – Mass of the point source in kilograms.

Returns

g_e (float) – Easting component of the gravitational acceleration generated by the point source on the observation point in $\text{m}/{\text{s}}^2$.

Notes

Returns the easting component $g_x(\mathbf{p})$ of the gravitational acceleration $\mathbf{g}$ on the observation point $\mathbf{p}=(x_p,y_p,z_p)$ generated by a single point source located in $\mathbf{q}=(x_q,y_q,z_q)$ and mass $m$.

$$g_x(\mathbf{p})=-Gm\frac{x_p-x_q}{\Vert \mathbf{p}-\mathbf{q}{\Vert }_2^2}$$

where $\Vert \cdot {\Vert }_2$ refer to the $L_2$ norm (the Euclidean distance between $\mathbf{p}$ and $\mathbf{q}$) and $G$ is the Universal Gravitational Constant.