TypeError: Obsid.__init__() got an unexpected keyword argument 'frequency'

[d3v-null]

The version of cthulhu that gets installed by setup.py (cthulhu==0.2.0) does not expect a frequency argument as given in

sivio/sivio/cthulhu_analysis.py

Line 29 in cd4100f

o = Obsid((ra, dec, ra_shifts, dec_shifts), frequency=138.875, radius=20)

this could be fixed by modifying setup.py to install the expected version of cthulhu, and making any necessary changes in cthulhu_analysis