brahe 1.4.0

Brahe is a modern satellite dynamics library for research and engineering applications designed to be easy-to-learn, high-performance, and quick-to-deploy. The north-star of the development is enabling users to solve meaningful problems and answer questions quickly, easily, and correctly.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85

"""
Python (Brahe) frame transformation benchmarks.
"""

import numpy as np

import brahe

from benchmarks.comparative.implementations.python.base import (
    ensure_eop,
    time_iterations,
)
from benchmarks.comparative.results import TaskResult


def state_eci_to_ecef(params: dict, iterations: int) -> TaskResult:
    """Benchmark ECI to ECEF state transformation using brahe."""
    ensure_eop()
    cases = params["cases"]

    # Pre-build Epoch objects
    epoch_state_pairs = []
    for case in cases:
        epc = brahe.Epoch.from_jd(case["jd"], brahe.TimeSystem.UTC)
        state = np.array(case["state"])
        epoch_state_pairs.append((epc, state))

    def run():
        results = []
        for epc, state in epoch_state_pairs:
            ecef = brahe.state_eci_to_ecef(epc, state)
            results.append(ecef.tolist())
        return results

    times, results = time_iterations(run, iterations)

    return TaskResult(
        task_name="frames.state_eci_to_ecef",
        language="python",
        library="brahe",
        iterations=iterations,
        times_seconds=times,
        results=results,
        metadata={
            "library": "brahe",
            "language": "python",
            "version": getattr(brahe, "__version__", "unknown"),
        },
    )


def state_ecef_to_eci(params: dict, iterations: int) -> TaskResult:
    """Benchmark ECEF to ECI state transformation using brahe."""
    ensure_eop()
    cases = params["cases"]

    # Pre-build Epoch objects
    epoch_state_pairs = []
    for case in cases:
        epc = brahe.Epoch.from_jd(case["jd"], brahe.TimeSystem.UTC)
        state = np.array(case["state"])
        epoch_state_pairs.append((epc, state))

    def run():
        results = []
        for epc, state in epoch_state_pairs:
            eci = brahe.state_ecef_to_eci(epc, state)
            results.append(eci.tolist())
        return results

    times, results = time_iterations(run, iterations)

    return TaskResult(
        task_name="frames.state_ecef_to_eci",
        language="python",
        library="brahe",
        iterations=iterations,
        times_seconds=times,
        results=results,
        metadata={
            "library": "brahe",
            "language": "python",
            "version": getattr(brahe, "__version__", "unknown"),
        },
    )