Helper functions for Systems ToolKit (STK)
Project description
systemstoolkit
Create an Attitude File
In [1]: import systemstoolkit as stk
In [2]: import numpy as np
In [3]: time = np.datetime64("2020-01-02 03:04:05") + np.arange(10).astype("timedelta64[s]")
In [4]: time
Out[4]:
array(['2020-01-02T03:04:05', '2020-01-02T03:04:06',
'2020-01-02T03:04:07', '2020-01-02T03:04:08',
'2020-01-02T03:04:09', '2020-01-02T03:04:10',
'2020-01-02T03:04:11', '2020-01-02T03:04:12',
'2020-01-02T03:04:13', '2020-01-02T03:04:14'],
dtype='datetime64[s]')
In [5]: data = np.array([[0,10,20]]*10, dtype='float32')
In [6]: data
Out[6]:
array([[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.],
[ 0., 10., 20.]], dtype=float32)
In [7]: afile = stk.attitude_file(time[0:10], data[0:10], "YPRAngles")
In [8]: print(afile)
stk.v.11.0
BEGIN Attitude
ScenarioEpoch 02 Jan 2020 03:04:05.000
MessageLevel Warnings
TimeFormat EpSec
AttitudeTimeYPRAngles
0.0 0.000000 10.000000 20.000000
1.0 0.000000 10.000000 20.000000
2.0 0.000000 10.000000 20.000000
3.0 0.000000 10.000000 20.000000
4.0 0.000000 10.000000 20.000000
5.0 0.000000 10.000000 20.000000
6.0 0.000000 10.000000 20.000000
7.0 0.000000 10.000000 20.000000
8.0 0.000000 10.000000 20.000000
9.0 0.000000 10.000000 20.000000
END Attitude
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