Module: hillPoint
Executive Summary
This attitude guidance module computes the orbital Hill reference frame states.
The orbit can be any type of Keplerian motion, including circular, elliptical or hyperbolic.
The module
PDF Description
contains further information on this module’s function,
how to run it, as well as testing.
Message Connection Descriptions
The following table lists all the module input and output messages. The module msg connection is set by the user from python. The msg type contains a link to the message structure definition, while the description provides information on what this message is used for.
Msg Variable Name |
Msg Type |
Description |
|---|---|---|
attRefOutMsg |
attitude reference output message |
|
transNavInMsg |
incoming spacecraft translational state message |
|
celBodyInMsg |
(optional) primary celestial body information input message |
Functions
-
void SelfInit_hillPoint(hillPointConfig *configData, int64_t moduleID)
self init method
- Parameters:
configData – The configuration data associated with RW null space model
moduleID – The ID associated with the configData
- Returns:
void
-
void Update_hillPoint(hillPointConfig *configData, uint64_t callTime, int64_t moduleID)
This method creates a orbit hill frame reference message. The desired orientation is defined within the module.
- Parameters:
configData – The configuration data associated with the null space control
callTime – The clock time at which the function was called (nanoseconds)
moduleID – The ID associated with the configData
- Returns:
void
-
void Reset_hillPoint(hillPointConfig *configData, uint64_t callTime, int64_t moduleID)
This method performs the module reset capability. This module has no actions.
- Parameters:
configData – The configuration data associated with this module
callTime – The clock time at which the function was called (nanoseconds)
moduleID – The ID associated with the configData
- Returns:
void
-
void computeHillPointingReference(hillPointConfig *configData, double r_BN_N[3], double v_BN_N[3], double celBdyPositonVector[3], double celBdyVelocityVector[3], AttRefMsgPayload *attRefOut)
-
struct hillPointConfig
- #include <hillPoint.h>
Data structure for module to compute the Hill-frame pointing navigation solution.