def equatorial_orbits(
    draw,
    sma=floats(R_E_KM, 42000),
    ecc=floats(0, 1, exclude_max=True),
    argp=floats(0, 360),
    ta=floats(0, 360),
    epoch=datetimes(),
):
    return KeplerianPredictor(
        draw(sma), draw(ecc), 0, 0, draw(argp), draw(ta), draw(epoch),
    ) 

def panicing_certs_fixture(draw):
    now = draw(datetimes(
        min_value=datetime(1971, 1, 1), max_value=datetime(2030, 1, 1)))
    panic = timedelta(seconds=draw(
        s.integers(min_value=60, max_value=60 * 60 * 24)))
    certs = dict(
        draw(
            s.lists(
                panicing_cert(now, panic),
                min_size=1,
                max_size=5,
                unique_by=lambda i: i[0])))
    return AcmeFixture(now=now, panic_interval=panic, certs=certs) 

def primitives():
    return (
        st.integers() |
        st.floats(allow_nan=False) |
        st.text() |
        st.binary() |
        st.datetimes(timezones=timezones() | st.none()) |
        st.dates() |
        st.times(timezones=timezones() | st.none()) |
        st.timedeltas() |
        st.booleans() |
        st.none()
    )