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CL_man_dvHohmann

Hohmann transfer

Calling Sequence

[deltav, dv1, dv2, anv1, anv2] = CL_man_dvHohmann(ai, af [[, mu, res="d"]])
man = CL_man_dvHohmann(ai, af [[, mu, res="s"]])

Description

Parameters

ai :

Semi-major axis of initial circular orbit. [m] (1xN or 1x1)

af :

Semi-major axis of final circular orbit. [m] (1xN or 1x1)

mu :

(optional) Gravitational constant. Default is %CL_mu. [m^3/s^2] (1x1)

res :

(string, optional) Type of output: "d" for multiple outputs or "s" for a single structure output. Default is "d".

deltav :

Som of norms of velocity increments. [m/s] (1xN)

dv1:

First velocity increment in cartesian coordnates in the "qsw" local orbital frame. [m/s]. (3xN)

dv2:

Second velocity increment in cartesian coordnates in the "qsw" local orbital frame. [m/s] (3xN)

anv1:

True anomaly at the location of the first velocity increment (in the initial orbit): as the initial orbit is circular, anv1 is arbitrarily set to 0. [rad] (1xN)

anv2:

True anomaly at the location of the second velocity increment (in the intermediate orbit). [rad] (1xN)

man:

Structure containing all the output data.

Authors

See also

Examples

// 7200km to 7000km :
ai = 7200.e3;
af = 7000.e3;
[deltav, dv1, dv2, anv1, anv2] = CL_man_dvHohmann(ai, af);

// Check results:
kep = [ai; 0; %pi/2; 0; 0; anv1];
kep1 = CL_man_applyDvKep(kep, dv1);
kep1(6) = anv2;
kep2 = CL_man_applyDvKep(kep1, dv2)

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