In [1]:

    

from pyciss import _utils as u


    

In [31]:

    

u.which_epi_janus_resonance('Janus', '2005-01-01')


    

    
Out[31]:





'Janus2'

In [7]:

    

name='Janus'


    

In [9]:

    

from astropy.time import Time


    

In [30]:

    

time = '2004-02-01'

t1 = Time('2002-01-21').to_datetime()
delta = Time(time).to_datetime() - t1
print(delta.days)
yearfraction = delta.days / 365
print(yearfraction)
if int(yearfraction / 4) % 2 == 0:
    print( name + '2')
else:
    print( name + '1')


    

    




741
2.03013698630137
Janus2

In [22]:

    

int(-1/4) % 2


    

    
Out[22]:





0

In [ ]:

    

def test_which_epi_janus_resonance():
    assert u.which_epi_janus_resonance('Janus', '2005-01-01') == "Janus2"
    assert u.which_epi_janus_resonance('Epimetheus', '2007-01-01') == "Epimetheus1"
    assert u.which_epi_janus_resonance('Janus', '2011-01-01') == "Janus2"