Applied Biosystems SOLiD™ 4 System SETS Software User Guide ...

.spch files
Applied Biosystems SOLiD 4 System SETS Software User Guide
Appendix D Advanced Topic: Primary Analysis
Key files generated by primary analysis D
Results of primary analysis for each panel are stored in files with the
".spch" extension (Solid Panel Cache HDF5). The ".spch" file is
used as a cache; that is, primary analysis both writes results to the
file and reads results from the file as analysis proceeds on a cycleby-cycle
basis. Data within the ".spch" file is organized by cycle.
When all cycles have been analyzed, a final processing step converts
the data from the cycle-based format to the “read-based” ASCII
formats (“.csfasta” and “.qual”).
".spch" files use the hierarchical binary format HDF5. Details on this
format are available at:
http://www.hdfgroup.org/HDF5/.
Tools to view the contents and extract results are available at:
http://www.hdfgroup.org/hdf-java-html/hdfview/
185