Tenten 10

From Tardis Wiki, the free Doctor Who reference

Tenten 10 was a planet in Mutter's Spiral, close to the refuelling station on Hurala. It was often referred to as 'the decimal planet'. (NSA: Prisoner of the Daleks)

Due to it's close proximity to Hurala, Klechton was likely located in the Lasron Solar Region in the Kappa Galanga Sector