The Swift X-ray telescope: Status and performance BurrowsD. N. KenneaJ. A. MorrisD. C. PaganiC. RacusinJ. AbbeyA. F. BeardmoreA. EvansP. A. GoadM. GodetO. OsborneJ. P. PageK. L. StarlingR. L. C. TylerL. G. WillingaleR. CampanaS. ChincariniG. MorettiA. RomanoP. TagliaferriG. CapalbiM. GiommiP. PerriM. TamburelliF. CusumanoG. HillJ. E. 2012 The Swift X-ray telescope: Status and performance