# Test Configuration: Prograde Burn at Periapsis
# Tests that periapsis distance is preserved during prograde burn

[[bodies]]
name = "Sun"
mass = 1.989e30
radius = 6.96e8
parent_index = -1
color = { r = 1.0, g = 1.0, b = 0.0 }
orbit = {
    semi_major_axis = 0.0,
    eccentricity = 0.0,
    true_anomaly = 0.0
}

[[bodies]]
name = "Earth"
mass = 5.972e24
radius = 6.371e6
parent_index = 0
color = { r = 0.0, g = 0.5, b = 1.0 }
orbit = {
    semi_major_axis = 1.496e11,
    eccentricity = 0.0,
    true_anomaly = 0.0
}

[[spacecraft]]
name = "TestSatellite"
mass = 1000.0
parent_index = 1
# Start at periapsis of an elliptical orbit
# a = 10,000 km, e = 0.3
# periapsis = 7,000 km, apoapsis = 13,000 km
orbit = {
    semi_major_axis = 1.0371e7,
    eccentricity = 0.3,
    true_anomaly = 0.1  # Start slightly past periapsis so first burn doesn't trigger immediately
}

[[spacecraft]]
name = "TestSatelliteCrossing"
mass = 1000.0
parent_index = 1
# Start at 90 degrees from periapsis for crossing test
orbit = {
    semi_major_axis = 1.0371e7,
    eccentricity = 0.3,
    true_anomaly = 1.57  # 90 degrees (pi/2)
}

[[maneuvers]]
name = "periapsis_prograde_burn"
spacecraft_name = "TestSatellite"
trigger_type = "true_anomaly"
trigger_value = 0.0
direction = "prograde"
delta_v = 500.0

[[maneuvers]]
name = "periapsis_prograde_burn_2"
spacecraft_name = "TestSatellite"
trigger_type = "true_anomaly"
trigger_value = 0.0
direction = "prograde"
delta_v = 500.0

[[maneuvers]]
name = "periapsis_prograde_burn_crossing"
spacecraft_name = "TestSatelliteCrossing"
trigger_type = "true_anomaly"
trigger_value = 0.0
direction = "prograde"
delta_v = 500.0