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We present X-ray observations of PWN G16.73+0.08/SNR G16.7+0.1 using archivaldata of {\it Chandra} ACIS. The X-ray emission peak location of this pulsarwind nebula is found to be offset by 24 arcsec from the centre of the 1.4-GHzemission of this nebula. The X-ray nebula is elongated in the direction fromthe X-ray peak to the 1.4-GHz emission centre. This offset suggests thatG16.73+0.08 is an evolved pulsar wind nebula interacting with the supernovaremnant reverse shock. We identify a point source, CXO J182058.16-142001.5,near the location of the X-ray peak. The spectrum of the X-ray nebula can bedescribed by an absorbed power law of photon index $0.98^{+0.79}_{-0.71}$ andhydrogen column density $N_{\rm H}=4.99^{+2.75}_{-2.28}\times 10^{22}$cm$^{-2}$. CXO J182058.16-142001.5 is likely a pulsar. We estimate itsspin-down power to be about $2.6\times 10 ^{36}$ erg s$^{-1}$. Assuming its ageat 3000 and 10,000 years, its dipole magnetic field strength at the polarsurface is estimated to be about $4.2 \times 10^{13}$ G and $1.3 \times10^{13}$ G, respectively.

Chandra Observation of PWN G16.73+0.08 in SNR G16.7+0.1