The 3CR $Chandra$ extragalactic survey at 1.0$<z<$1.5
  The aim of this paper is to present an analysis of newly acquired X-ray
observations of 16 extragalactic radio sources, listed in the Third Cambridge
Revised (3CR) catalog, and not previously observed by Chandra. Observations
were performed during Chandra Cycle 17, extending X-ray coverage for the 3CR
extragalactic catalog up to $z$=1.5. Among the 16 targets, two lie at $z<$0.5
(i.e., 3CR27, at $z$=0.184 and 3CR69, at $z$=0.458), all the remaining 14 have
redshifts between 1.0 and 1.5. In the current sample there are three compact
steep spectrum (CSS) sources, three quasars and an FRI radio galaxy, while the
other nine are FRII radio galaxies. All radio sources have an X-ray
counterpart. We measured nuclear X-ray fluxes as well as X-ray emission
associated with radio jet knots, hotspots or lobes in three energy bands: soft
(0.5-1 keV), medium (1-2 keV) and hard (2-7 keV). We also performed standard
X-ray spectral analysis for the four brightest nuclei. We discovered X-ray
emission associated with: the radio lobe of 3CR124; a hotspot of the quasar
3CR220.2; another hotspot of the radio galaxy 3CR238; and the jet knot of
3CR297. We also detected extended X-ray emission around the nuclear region of
3CR124 and 3CR297 on scales of several tens of kpc. Finally, we present an
update on the X-ray observations performed with Chandra and XMM-Newton on the
entire 3CR extragalactic catalog.
