Those quantities can be easily calculated, if the basic properties (distances and sizes) are known. You need values for the

Sun,

Earth,

Jupiter,

Mars,

Phobos, and

Deimos. Then you can use simple trigonometric relations like

, where

is the radius of the body, whose apparent angular radius

should be determined, and

is its distance from the point of view. Note that the distance between the point of view to the observed body is not the distance between the two bodies. Example: In order to calculate the apparent diameter of Phobos when viewed from the surface of Mars, the distance is reduced by the Mars radius. From this, one can derive:

Apparent diameter of Sun from Mars: 21 arcminutes

Apparent diameter of Phobos from Mars: 11.4 arcminutes

Apparent diameter of Deimos from Mars: 2.6 arcminutes

Apparent diameter of Jupiter from Mars: approx. 29 - 52 arcseconds (largest and smallest distance)

Apparent diameter of Jupiter from Earth: approx. 31 - 46 arcseconds (largest and smallest distance)

Here is a short movie of a solar eclipse caused by Phobos as observed from Mars by the probe Opportunity.