The GX 301-2 rotational period data were retrieved from the HEAO-1
satellite's A2 instrument. The orbital period data were retrieved from
the Vela 5B satellite's All Sky Monitor. The students will
determine the orbital period and the stellar rotation period, which are
41.5 days and 700 seconds, respectively. This is a system where a rotating
neutron star is in orbit with a supergiant B star.