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\section{Plans for Calibrations with Early Data}
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Based on the current status of the calibration methods we have decided to
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exercise a subset of the presented scheme in Figure~\ref{figure:hcalWorkflow}
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for early data.
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After collecting $\sim10~pb^{-1}$ of data we expect to be able to provide
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relative azimuthal corrections from MinimumBias events and set the energy scale
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with $40-60$~GeV isolated tracks as a function of $i\eta$ (in the region
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with tracking coverage).
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The estimates of $\sim10~pb^{-1}$ for isolated tracks is contingent on timely inclusion
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of the HLT for data taking. In the December 2009 collisions data triggers that
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require tracking were not active. Subsequent offline analysis of the data
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revealed the presence of some timing problems related to tracking (not caused by our code).
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We hope that these issues will be resolved by the start of 7~TeV collisions.
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Additional consistency checks will be performed using
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the jet samples that include monitoring of the ratio of energy in long/short fibers
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in HF, the energy scale in +/- sides of HF and HE with no tracking coverage.
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The monitoring may yield relative correction factors in case of abnormal response.
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Before accumulating the noted statistics we will perform tests of the workflow with
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lower momentum tracks and extract information on relative channel response.
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However, response corrections that adjust the energy scale will be obtained
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directly with the predefined $40-60$~GeV tracks. The inclusion of these corrections
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constitute a significant change of the scale in HB/HE that will require
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redefinition of various jet corrections that are build on top of the raw detector
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energies.
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Calibrations with larger data samples and additional techniques under development will be
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discussed in a subsequent update or a separate note.
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