State Transition Matrix

The 6x6 State Transition Matrix (STM) for the cartesian position and velocity, formatted as text lines that align columns for better readability. The STM describes the effect of position-velocity perturbations made at the start of propagation on the position-velocity state at the reported time. The coordinate system of the STM is required pre-data for this data provider. Updated data is generated only for segments with a propagator that has a State TransitionMatrix propagator function.

Available for these objects: Satellite

Restrictions: Satellite - Applies when Satellite is propagated using Astrogator and uses a State Transition Matrix propagator function.

Type: Time-varying data.

Availability: Reports | Graphs | Dynamic Displays | Strip Charts

Pre-data required: "<TruncObjectPath> <SystemName>" - e.g. "CentralBody/Sun ICRF"

Data Provider Elements

Name	Dimension	Type	Description
Time	Date	Real Number or Text	Time.
STM Line1	Unitless	Text	The first line of the Cartesian STM. Each column within the line contains an element of the STM. The column value associates delta(PosX, tf) [the perturbation in PosX at the reported time] with delta(z_i, ti) [the perturbation in the position-velocity state element corresponding to the column, at time ti], i.e., delta(PosX, tf) = [col value] * delta(z_i, ti), where ti is the time at the start of propagation, tf is the reported time, and delta(z_i,t) represents a small perturbation in component z_i at time t., where z=(PosX, PosY, PosZ, VelX, VelY, VelZ).
STM Line2	Unitless	Text	The second line of the Cartesian STM. Each column within the line contains an element of the STM. The column value associates delta(PosY, tf) [the perturbation in PosY at the reported time] with delta(z_i, ti) [the perturbation in the position-velocity state element corresponding to the column, at time ti], i.e., delta(PosY, tf) = [col value] * delta(z_i, ti), where ti is the time at the start of propagation, tf is the reported time, and delta(z_i,t) represents a small perturbation in component z_i at time t., where z=(PosX, PosY, PosZ, VelX, VelY, VelZ).
STM Line3	Unitless	Text	The third line of the Cartesian STM. Each column within the line contains an element of the STM. The column value associates delta(PosZ, tf) [the perturbation in PosZ at the reported time] with delta(z_i, ti) [the perturbation in the position-velocity state element corresponding to the column, at time ti], i.e., delta(PosZ, tf) = [col value] * delta(z_i, ti), where ti is the time at the start of propagation, tf is the reported time, and delta(z_i,t) represents a small perturbation in component z_i at time t., where z=(PosX, PosY, PosZ, VelX, VelY, VelZ).
STM Line4	Unitless	Text	The fourth line of the Cartesian STM. Each column within the line contains an element of the STM. The column value associates delta(VelX, tf) [the perturbation in VelX at the reported time] with delta(z_i, ti) [the perturbation in the position-velocity state element corresponding to the column, at time ti], i.e., delta(VelX, tf) = [col value] * delta(z_i, ti), where ti is the time at the start of propagation, tf is the reported time, and delta(z_i,t) represents a small perturbation in component z_i at time t., where z=(PosX, PosY, PosZ, VelX, VelY, VelZ).
STM Line5	Unitless	Text	The fifth line of the Cartesian STM. Each column within the line contains an element of the STM. The column value associates delta(VelY, tf) [the perturbation in VelY at the reported time] with delta(z_i, ti) [the perturbation in the position-velocity state element corresponding to the column, at time ti], i.e., delta(VelY, tf) = [col value] * delta(z_i, ti), where ti is the time at the start of propagation, tf is the reported time, and delta(z_i,t) represents a small perturbation in component z_i at time t., where z=(PosX, PosY, PosZ, VelX, VelY, VelZ).
STM Line6	Unitless	Text	The sixth line of the Cartesian STM. Each column within the line contains an element of the STM. The column value associates delta(VelZ, tf) [the perturbation in VelZ at the reported time] with delta(z_i, ti) [the perturbation in the position-velocity state element corresponding to the column, at time ti], i.e., delta(VelZ, tf) = [col value] * delta(z_i, ti), where ti is the time at the start of propagation, tf is the reported time, and delta(z_i,t) represents a small perturbation in component z_i at time t., where z=(PosX, PosY, PosZ, VelX, VelY, VelZ).