A PAF FILE FORMAT

A.1 PAF HEADER

The original header using the "SUP" category keywords, has been replaced by the so-called PAF Header. The format of this can be found in [4].

A.2 CONVERSION BETWEEN SHORT-FITS AND `NORMAL' FITS

The conversion rules between the two formats are as follows:

Basic Conversion:

The format of a hierarchical FITS command line is as follows:

HIERARCH ESO <cat> [<sub>] <par> = <val> [/ <comment>]

where zero, one or more sub-systems can be defined, and an inline comment can be added.

This is converted into:

<cat>.[<sub>].<par> <val>; [# <comment>]

which has the same hierarchical structure as the original, making the conversion easy. Note that the values in the Short-FITS format must be terminated by a semicolon. The equal sign is no-longer used. This is replaced by one blank. The keywords are separated with dots.

An example of this conversion is:

HIERARCH ESO INS LAMP-1 ST = T / Turn LAMP-1 ON

which is converted into:

INS.LAMP-1.ST "T"; # Turn LAMP-1 ON

The conversion rule for standard FITS keywords is the same as for the Short-FITS keywords.

Conversion of the "COMMENT" keyword:

The "COMMENT" keyword is converted in the following manner:

COMMENT <text>

is converted into:

# <text>

String Conversion:

A string is converted between the two formats, applying the following rule:

`<string>'

is converted into

"<string>"

Since the transformation between the two formats of FITS keywords is relatively simple, only the Short-FITS format is used in the following description.

B DICTIONARY EXAMPLE

Dictionary Name: ESO-VLT-DIC.ISAAC

Scope: ISAAC

Source: ESO

Revision: 1.0

Date: 6-Oct-94

Status: draft

Description: An example

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Parameter Name: ADA ABSROT MIN

Class: header|setup

Context: Adapter

Type: double

Value Format: %.3E

Unit: degrees

Comment Field: Min rot angle of adapter during exp

Description:

Parameter Name: ADA ABSROT MAX

Class: header|setup

Context: Adapter

Type: double

Value Format: %.3E

Unit: degrees

Comment Field: Max rot angle of adapter during exp

Description:

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Parameter Name: DET FRAM CDELT1

Class: header|setup

Context: Detector

Type: double

Value Format: %.1f

Unit:

Comment Field: Binning factor along X

Description:

Parameter Name: DET FRAM CDELT2

Class: header|setup

Context: Detector

Type: integer

Value Format: %d

Unit:

Comment Field: Binning factor along Y

Description:

Parameter Name: DET FRAM CRPIX1

Class: header|setup

Context: Detector

Type: double

Value Format: %.1f

Unit:

Comment Field: X coordinate of reference pixel

Description:

Parameter Name: DET FRAM CRPIX2

Class: header|setup

Context: Detector

Type: double

Value Format: %.1f

Unit:

Comment Field: Y coordinate of reference pixel

Description:

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Parameter Name: INS OPTI-1 ID

Class: header|setup

Context: Instrument

Type: string

Value Format: %8s

Unit:

Comment Field: OPTI-i unique id

Description:

Parameter Name: INS OPTI-1 NAME

Class: header|setup

Context: Instrument

Type: string

Value Format: %8s

Unit:

Comment Field: OPTI-i unique name

Description:

Parameter Name: INS OPTI-1 NO

Class: header|setup

Context: Instrument

Type: integer

Value Format: %d

Unit:

Comment Field: OPTI-i current position

Description:

Parameter Name: INS OPTI-1 TYPE

Class: header|setup

Context: Instrument

Type: string

Value Format: %10s

Unit:

Comment Field: OPTI-i optical kind

Description:

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C EXAMPLE OF ALIAS CONVERSION TABLE

# File name: EXAMPLE.alias

#

# This is an example of an Alias Conversion Table.

INS.OPTI-7.NAME filtpos7

INS.OPTI-9.NO filter9

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