The oxygen-rich supernova remnant (SNR) 1E0102-72.3, the brightest
SNR in the SMC, has been continually observed throughout the Chandra
X-ray Observatory's mission as a calibration source for ACIS. We have used the
strong O, Ne, and Mg lines in the spectrum of 1E0102-72.3 to
characterize the ACIS spectral response below 1.5 keV, compensating
for the lack of strong lines in this energy range in the on-board
calibration source. We have used the well-characterized spectrum of
1E0102-72.3 to evaluate the quality of our time-dependent gain, and
CTI correction software under development at the CXC. To facilitate
the upcoming meeting of the International Astronomical Consortium
for High Energy Calibration, we provide here links to the latest
calibration model provided by Andy Pollock (with some modifications)
and our source spectra and related calibration data. (source spectra
and data to be available soon).