OEM Data Types¶

State¶

class oem.components.State(epoch, position, velocity, acceleration=None, version='2.0')¶

Bases: object

Basic Cartesian state.

epoch¶

Epoch date and time.

Type:	DateTime

position¶

3-element array describing the position at epoch.

Type:	ndarray

velocity¶

3-element array describing the velocity at epoch.

Type:	ndarray

acceleration¶

3-element array describing the acceleration at epoch. If unavailable, this attribute is None.

Type:	ndarray

classmethod from_string(segment, version)¶

Create State from OEM-formatted string.

Parameters:	segment (str) – String containing a single OEM state line.
Returns:	New State instance.
Return type:	new_state (State)

class oem.components.Covariance(epoch, frame, matrix, version='2.0')¶

Bases: object

Basic 6x6 covariance.

epoch¶

Epoch date and time.

Type:	DateTime

frame¶

Reference from of this covariance.

Type:	str

matrix¶

6x6 covariance matrix.

Type:	ndarray

classmethod from_string(segment, version)¶

Create Covariance from OEM-formatted string.

Parameters:	segment (str) – String containing a single OEM covariance block.
Returns:	New Covariance instance.
Return type:	new_covariance (Covariance)