OGIP Calibration Memo CAL/ASD/93-021
HOW TO INSTALL AN ASCA
CALIBRATION DATABASE
Ron Zellar & Ian M George
HEASARC
Codes 664 & 668,
NASA/GSFC,
Greenbelt, MD20771
Last Update: 1993 Sep 30
SUMMARY
| |
This document describes the installation of an OGIP Calibration Database.
Intended audience: Guest Observers and institutions performing data
analysis in conjunction with the OGIP.
|
| |
How to Get this Document
A current version of this document can be obtained via anonymous ftp
from:
legacy.gsfc.nasa.gov (128.183.8.233).
from within the
directory /caldb/docs/asca
The TeX version of this document is named cal_asd_93_021.tex while the
Postscript version is called cal_asd_93_021.ps
If you should have any trouble in retrieving this document or if you
require further explanation of it's content, please contact:
Ron Zellar
email: zellar@lheavx.gsfc.nasa.gov
phone: 301 286-3636 (USA)
Ian M. George
email: george@lheavx.gsfc.nasa.gov
phone: 301 286-6094 (USA)
1 How to Use this Document
This document should be used as a step-by-step guide for installing an
OGIP Calibration Database (caldb)
for the ASCA mission. If the installer follows
these instructions, s/he will end up with a exact duplicate
of the Primary ASCA caldb at ISAS.
In addition, no editing
of site dependent files will be necessary and the database will be fully
functional at the end of this installation. Modifying any of these steps may
require additional edits to some site dependent files. Please contact any
member of the OGIP caldb team if you choose to modify this
installation procedure or if you need additional assistance.
This document is UNIX/ULTRIX specific. VMS users should contact the
OGIP Calibration Database for additional instructions.
At the writting of this document, "mirror" software is not available for
automatic installation and maintenance of an ASCA caldb.
Please check
with the ASCA caldb to see if this software is available before
reading this document.
2 Creating the Caldb Directory Structure
Even though the directory structure of an OGIP caldb is very flexible
and is capable of handling almost any configuration, we recommend (at least
initially) that ASCA Calibration Databases have the structure
described below. If your site requires a directory structure different
from the one described here, please contact a member of the OGIP caldb team
and they will be glad to help you create a suitable database.
The general idea for this section is to duplicate exactly the directory
structure of the Primary ASCA Calibration Site at ISAS.
2.1 Choosing a Location
Begin by choosing a location for your local Calibration Database that
has enough room to hold all the data and extra room to expand.
Check with the ISAS or OGIP Calibration Database to see what their current
disk space requirements are for ASCA calibration data.
Once you have chosen a location, create a directory there called
"caldb".
For example, the Calibration Database at NASA/Goddard Space Flight
Center was placed within our anonymous ftp area. Thus, the physical
location of our calibration database is /FTP/caldb.
You may want yours to
be /asca_stuff/caldb or something similar.
2.2 Root Level Link
Create a root level link called /caldb which points to the real
location of your local caldb using the command:
unix> ln -s path /caldb
this makes a soft link
where path is the real path to the Calibration Database.
By using a root level link, the entire calibration database can be moved
without disruption to users by simply redefining the root level link. The
link at GSFC points to /FTP/caldb,
i.e. an "ls -l /caldb" command yields:
lrwxrwxrwx 1 root 10 Jul 28 07:50 /caldb -> /FTP/caldb
where the link was ceated using the command:
unix> ln -s /FTP/caldb /caldb
2.3 The Software Directories
Create the software directory under /caldb by executing the
commands:
unix> cd /caldb
move to the /caldb directory
unix> mkdir software
make a new directory called software
The software directory will later contain files accessed
by calibration database software supplied by the OGIP.
Create the tools directory under /caldb/software by executing
the commands:
unix> cd /caldb/software
move to the /caldb/software directory
unix> mkdir tools
make a new directory called tools
This directory will contain the files necessary to set up the caldb
Environment Variables, which are required by certain tasks to
allow access to the calibration files.
2.4 The Documents Directories
(The docs directory and it's contents are not strictly required. The user
may optionally disregard all of this sub-section without affecting the
functionality of the Calibration Database.)
Create the documents directory under /caldb by executing the
commands:
unix> cd /caldb
unix> mkdir docs
unix> cd /caldb/docs
unix> mkdir asca
These directories will contain documents related to the maintenance of the
caldb and memos pertaining to ASCA calibration
issues.
2.5 The Data Directories
Create the data directory under /caldb by executing the
commands:
unix> cd /caldb
unix> mkdir data
unix> cd /caldb/data
unix> mkdir asca
Create the instrument directories by executing the
commands:
unix> cd /caldb/data/asca
unix> mkdir gis
unix> mkdir mis
unix> mkdir sis
unix> mkdir xrt
Create the BCF and CPF subdirectories in each instrument
directory by executing the commands:
unix> cd /caldb/data/gis
unix> mkdir bcf
unix> mkdir cpf
unix> cd /caldb/data/mis
unix> mkdir bcf
unix> mkdir cpf
unix> cd /caldb/data/sis
unix> mkdir bcf
unix> mkdir cpf
unix> cd /caldb/data/xrt
unix> mkdir bcf
unix> mkdir cpf
All Basic Calibration Files will be contained in the bcf
directories and all
Calibration Product Files will be contained in the cpf directories.
3 Populating your new Caldb
Each of the directories created in Section 2 now needs to be populated with
files. Table 1 describes where the files for these directories can be
obtained. The left hand column lists the directories which should exist in
your Calibration Database. The right hand column lists the directories in
the Primary ASCA Calibration Database that contain the files to be
transferred. For example, the directory
/caldb/software/tools should be
populated from the directory /caldb/software/tools.
The installer should
ftp to the required directories at ISAS retrieve all the files in those
directories. An explanation of how to ftp to the ISAS machine xray follows.
Table 1: Locations of ASCA calibration files
| Local Directory | ISAS Directory |
| |
| |
| /caldb/software/tools | /caldb/software/tools |
| /caldb/docs/caldb | /caldb/docs/caldb |
| /caldb/docs/asca | /caldb/docs/asca |
| /caldb/data/gis/bcf | /caldb/data/gis/bcf |
| /caldb/data/gis/cpf | /caldb/data/gis/cpf |
| /caldb/data/mis/bcf | /caldb/data/mis/bcf |
| /caldb/data/mis/cpf | /caldb/data/mis/cpf |
| /caldb/data/sis/bcf | /caldb/data/sis/bcf |
| /caldb/data/sis/cpf | /caldb/data/sis/cpf |
| /caldb/data/xrt/bcf | /caldb/data/xrt/bcf |
| /caldb/data/xrt/cpf | /caldb/data/xrt/cpf |
| |
The Primary ASCA Calibration Database is located on the ISAS machine
xray.astro.isas.ac.jp.
The installer can ftp to this site if they have an
account on this machine. The commands to be executed for connecting to
this machine are:
To initiate ftp, type the following (boldface) commands at your local
computer
operating system prompt (comments appear in italics):
unix> ftp xray.astro.isas.ac.jp
start an ftp session
Name: username
enter your ISAS username
Password: password
enter your ISAS password
ftp> binary
set binary transfer mode for ftp
The commands necessary for transferring all the files from
directoryA on the ISAS machine to
directoryB on your local machine are:
ftp> cd directoryA
move to directoryA on ISAS machine
ftp> lcd directoryB
move to directoryB on local machine
ftp> mget *
transfer all files from ISAS to local machine
ftp> quit
exit the ftp session
For example, to populate the Calibration Database directory
/caldb/software/tools, one would execute the commands:
unix>ftp xray.astro.isas.ac.jp
Name: . . .
Password: . . .
ftp> binary
ftp> cd /caldb/software/tools
ftp> lcd /caldb/software/tools
ftp> mget *
ftp> quit
This section completes the final step in duplicating the Primary
ASCA
Calibration Database.
File translated from
TEX
by
TTH,
version 3.84.
On 7 May 2010, 15:59.