Band diagram of MGM measured band centers for 2579 Spartacus (filled circles), 4 Vesta (star), and other Vestoids (gray squares). The regions occupied by the HED meteorites are included as determined by Leith et al. (2017) using the same methodology. A previous Spartacus spectrum from October 2000 is shown as the inverted triangle. The location of Spartacus in this diagram based on our new data is largely consistent with other Vestoids and most akin to a eucritic composition.