file: $CALDBhetgcal/docs/caldb_hetgcal.txt, v 0.24, 1999-01-25 dd


HETG Calibration Products Architecture: "$CALDBhetgcal" 
=======================================================


Related Documents
-----------------

1. Calibration Products and Process
   http://space.mit.edu/HETG/cal_overview.html

2. AXAF CALDB Architecture
   http://hea-www.harvard.edu/~arots/asc/fits/caldb.txt

3. AXAF Calibration Products Architecture: "$CALDBaxafcal"
   http://space.mit.edu/HETG/caldb/caldb_axafcal.txt


HETG Calibration Directory Structure
------------------------------------

The following directory structure is being prototyped for use in
HETG calibration:

$CALDBhetgcal/ 
                    README.txt  (directs person to caldb_hetgcal.txt)
                    cip/
                         [assorted files]
                    cmp/
                         [assorted files]
                    data/
                         [assorted original data files]
                                 lr/
                                 synchrotron/
                    docs/
                         caldb_axafcal.txt  (copy for reference)
                         caldb_hetgcal.txt  (this doc)
                         cip_config.txt
                         cmp_config.txt
                         data_config.txt
                         docs_config.txt
                         fcp_config.txt
                         sw_config.txt
                         [other documents]
                    fcp/
                         [assorted files]
                    software/
                             hetgcal_idl_start.pro
                                 ddidl/
                                 ASCMITidl/
                                 eff/
                    web/
                        hetgcal.html


Notes on HETG subdirectories
----------------------------

"docs" = documentation

"ddidl" = dd's IDL ground calibration and analysis code (~35 Mb)

"ASCMITidl" = IDL routines from ASC/MIT (wiwaxia/d4/ASC/lib/IDL)

"eff" = John Davis grating efficiency software

"data" = data files, TBD

"cmp" = calibration measurement product = ~ one step past data

"fcp" = fundamental calibration product = low-level, pre/post synthesis

"cip" = calibration interface product = generally useful products,
                                        essentially "bcf"s - but may not
                                        be in CALDB FITS format