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Index

TABLE, extension
8.1 The ASCII Table
Nbits
5.4.1.1 Principal
Nbits
5.4.1.2 Conforming Extensions
Nbits
7.1.1 Mandatory Keywords
Nbits
E Differences from IAU-endorsed
AIPS
I Reserved Extension Type
AIPS, Going
2 References
angle
5.3 Units | CROTAn Keywords | E Differences from IAU-endorsed
angular measure
5.3 Units
ANSI
3 Definitions, Acronyms, and
ANSI, ASCII
2 References
ANSI, FORTRAN-77
2 References
ANSI, IEEE
2 References | 6.3 IEEE-754 Floating Point | Single Precision Floating Point
ANSI, tapes
C.2.1 Tape
ANSI, X3.4-1977
2 References
ANSI, X3.9-1978
2 References
array
3 Definitions, Acronyms, and | 5.4.2.5 Array Keywords
array descriptor
Array Descriptor | B.1 ``Variable Length Array'' | B.1 ``Variable Length Array''
array size
5.4.1.1 Principal | 5.4.1.2 Conforming Extensions | 7.1.1 Mandatory Keywords | 7.2 Data Sequence
array value
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | BSCALE Keyword | BLANK Keyword | E Differences from IAU-endorsed | E Differences from IAU-endorsed
array, multidimensional
1.4 Organization of This | 4.3.2 Primary Data Array | B.2 ``Multidimensional Array'' Convention
array, substring
1.4 Organization of This | B.3 ``Substring Array'' Convention
array, variable length
1.4 Organization of This | B.1 ``Variable Length Array'' | B.1 ``Variable Length Array''
ASCII blank
3 Definitions, Acronyms, and
ASCII character
1.4 Organization of This | 3 Definitions, Acronyms, and | 6.1 Characters | BITPIX Keyword | 8.1.3 Data Sequence | G ASCII Text
ASCII table
Introduction | 1.2 Scope | 1.4 Organization of This | 2 References | 8.1 The ASCII Table | E Differences from IAU-endorsed | I Reserved Extension Type
ASCII text
Introduction | 1.4 Organization of This | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.2 Individual FITS Structures | 4.3.1 Primary Header | 5.1.2.3 Value/Comment (bytes 11-80) | 5.2.1 Character String | COMMENT Keyword | HISTORY Keyword | Keyword Field is Blank | 8.1.5 Entries | Character | E Differences from IAU-endorsed | G ASCII Text
ASCII, ANSI
2 References
AUTHOR
AUTHOR Keyword
Basic FITS
Introduction | 1.2 Scope | 3 Definitions, Acronyms, and | E Differences from IAU-endorsed
binary table
Introduction | 1.2 Scope | 1.4 Organization of This | 1.4 Organization of This | 2 References | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 7 Random Groups Structure | 8.3 Binary Table Extension | B Proposed Binary Table | F Summary of Keywords
BINTABLE
XTENSION Keyword | I Reserved Extension Type | I Reserved Extension Type
BINTABLE extension
8.3 Binary Table Extension | B Proposed Binary Table | F Summary of Keywords | I Reserved Extension Type
BITPIX
5.4.1.1 Principal | 7.1.1.2 BITPIX Keyword | 5.4.1.2 Conforming Extensions | BLANK Keyword | DATAMAX Keyword | DATAMIN Keyword | 6.3 IEEE-754 Floating Point | 6.3 IEEE-754 Floating Point | 7.1.1 Mandatory Keywords | BITPIX Keyword | BITPIX Keyword | BITPIX Keyword | BITPIX Keyword
BLANK
BLANK Keyword | 6.3 IEEE-754 Floating Point | E Differences from IAU-endorsed
block size
Introduction | 1.2 Scope | 1.4 Organization of This
BLOCKED
BLOCKED Keyword | BLOCKED Keyword | 5.4.3.2 Restrictions | E Differences from IAU-endorsed
blocking
2 References | E Differences from IAU-endorsed | E Differences from IAU-endorsed
BSCALE
BSCALE Keyword | BUNIT Keyword | 6.3 IEEE-754 Floating Point | E Differences from IAU-endorsed
BUNIT
BUNIT Keyword | E Differences from IAU-endorsed | E Differences from IAU-endorsed
byte order
6 Data Representation
BZERO
BZERO Keyword | BUNIT Keyword | 6.3 IEEE-754 Floating Point | E Differences from IAU-endorsed
card image
3 Definitions, Acronyms, and | 4.3.1 Primary Header | 5.1.1 Syntax
case sensitivity
5.1.2.1 Keyword (bytes 1-8) | 5.2 Value
CDELTn
CDELTn Keywords | E Differences from IAU-endorsed | E Differences from IAU-endorsed
character string
5.2 Value | 5.2.1 Character String | Character | B.2 ``Multidimensional Array'' Convention
COMMENT
COMMENT Keyword
complex data representation
5.2.5 Complex Integer Number | 5.2.6 Complex Floating Point | Single Precision Complex | E Differences from IAU-endorsed
COMPRESS
I Reserved Extension Type
conforming extension
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.1 Overall | 4.4.1.1 Identity | 4.4.2 Standard Extensions | 4.4.3 Order of Extensions | EXTEND Keyword | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed
coordinate axis
3 Definitions, Acronyms, and | CTYPEn Keywords
coordinate system
EQUINOX Keyword | EPOCH Keyword | CROTAn Keywords
coordinate value
CRVALn Keywords
CROTAn
CROTAn Keywords | E Differences from IAU-endorsed
CRPIXn
CRPIXn Keywords | CRVALn Keywords | CDELTn Keywords | E Differences from IAU-endorsed
CRVALn
CRVALn Keywords | E Differences from IAU-endorsed
CTYPEn
CTYPEn Keywords | CRVALn Keywords | CDELTn Keywords | CROTAn Keywords | E Differences from IAU-endorsed
DATAMAX
DATAMAX Keyword | E Differences from IAU-endorsed
DATAMIN
DATAMIN Keyword | E Differences from IAU-endorsed
DATE, four-digit year form
DATE Keyword
DATE, two-digit year form
DATE Keyword
DATE-OBS
DATE-OBS Keyword | E Differences from IAU-endorsed
DATExxxx
DATExxxx Keywords
deprecate
1.4 Organization of This | 3 Definitions, Acronyms, and | BLOCKED Keyword | EPOCH Keyword | 7 Random Groups Structure | 9 Restrictions on Changes | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed
DUMP
I Reserved Extension Type
END
7.1.1.9 END Keyword | END Keyword | END Keyword | END Keyword | END Keyword | B.1 ``Variable Length Array''
EPOCH
EPOCH Keyword | E Differences from IAU-endorsed
EQUINOX
EQUINOX Keyword | EPOCH Keyword | E Differences from IAU-endorsed
EXTEND
EXTEND Keyword | BLOCKED Keyword | 5.4.3.2 Restrictions | 8.1 The ASCII Table | 8.2 Image Extension | 8.3 Binary Table Extension
extension
Introduction | 1.2 Scope | 1.4 Organization of This | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.2 Individual FITS Structures | 4.4.1 Requirements for Conforming | 4.4.1.3 Compatibility with Existing FITS | 5.4.2.6 Extension Keywords | 5.4.3.2 Restrictions | 6 Data Representation | C.3.2 Other Media | E Differences from IAU-endorsed | I Reserved Extension Type
extension name
1.4 Organization of This | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.4.1.1 Identity | 4.4.2 Standard Extensions | EXTNAME Keyword
extension registration
4.4.1.1 Identity | E Differences from IAU-endorsed
extension type name
XTENSION Keyword
extension, conforming
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.1 Overall | 4.4.1.1 Identity | 4.4.2 Standard Extensions | 4.4.3 Order of Extensions | EXTEND Keyword | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed
extension, standard
3 Definitions, Acronyms, and | 4.4.2 Standard Extensions | 4.4.3 Order of Extensions | XTENSION Keyword | 8.1 The ASCII Table | 8.2 Image Extension | 8.3 Binary Table Extension | E Differences from IAU-endorsed
EXTLEVEL
EXTLEVEL Keyword
EXTNAME
3 Definitions, Acronyms, and | EXTNAME Keyword
EXTVER
EXTVER Keyword
field, empty
TFORMn Keywords | 8.3.3.1 Main Data Table
FILEMARK
I Reserved Extension Type
fill
4.3.1 Primary Header | 5.1.2.1 Keyword (bytes 1-8) | 7.2 Data Sequence | TNULLn Keywords | 8.1.3 Data Sequence | 8.3.3 Data Sequence | E Differences from IAU-endorsed | E Differences from IAU-endorsed
FITS structure
1.4 Organization of This | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.1 Overall | 4.1 Overall | 4.1 Overall | 4.4.1.3 Compatibility with Existing FITS | 5.4.2 Other Reserved Keywords | 9 Restrictions on Changes | E Differences from IAU-endorsed
FITS Support Office
4.4.1.1 Identity | XTENSION Keyword | E Differences from IAU-endorsed | E Differences from IAU-endorsed
FITS Working Group
Introduction | 1.1 Purpose
floating point
5.2.4 Real Floating Point | Single Precision Floating Point | Double Precision Floating Point | H IEEE Floating Point
floating point FITS agreement
Introduction | 2 References | E Differences from IAU-endorsed
floating point, 64 bit
E Differences from IAU-endorsed
floating point, complex
5.2.6 Complex Floating Point | Single Precision Complex | E Differences from IAU-endorsed
format
TFORMn Keywords
format, data
Introduction | 6 Data Representation
format, extension
3 Definitions, Acronyms, and
format, fixed
5.2 Value | E Differences from IAU-endorsed | E Differences from IAU-endorsed
format, free
5.2 Value
format, keywords
5.2 Value
format, standard
1.2 Scope
FORTRAN-77
TFORMn Keywords
FORTRAN-77, ANSI manual
2 References
FORTRAN-77, format
8.1.4 Fields | 8.1.5 Entries
FORTRAN-77, list-directed input
E Differences from IAU-endorsed
FORTRAN-77, list-directed read
E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed
fraction
3 Definitions, Acronyms, and | E Differences from IAU-endorsed
GCOUNT
5.4.1.2 Conforming Extensions | 7.1.1.8 GCOUNT Keyword | 7.1.1 Mandatory Keywords | GCOUNT Keyword | 7.2 Data Sequence | GCOUNT Keyword | GCOUNT Keyword | GCOUNT Keyword
Going AIPS
2 References
group parameter value
3 Definitions, Acronyms, and | 7.1.2.2 PSCALn Keywords | 7.1.2.3 PZEROn Keywords | 7.3 Data Representation
GROUPS
7.1.1.6 GROUPS Keyword
HDU
3 Definitions, Acronyms, and | 7.1.1.3 NAXIS Keyword | NAXISn Keywords
HDU, extension
3 Definitions, Acronyms, and | 4.2 Individual FITS Structures
HDU, primary
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.1 Overall | 4.1 Overall | 4.3.1 Primary Header | 4.4.3 Order of Extensions
heap
THEAP Keyword | B.1 ``Variable Length Array'' | B.1 ``Variable Length Array'' | E Differences from IAU-endorsed
HISTORY
HISTORY Keyword
hyphen
5.1.2.1 Keyword (bytes 1-8)
IAU
Introduction | 1.1 Purpose | 1.3 Applicability | 1.4 Organization of This | 2 References | 3 Definitions, Acronyms, and | E Differences from IAU-endorsed
IAU Style Manual
2 References | 5.3 Units | E Differences from IAU-endorsed
IAU, 1988 General Assembly
Introduction
IAUFWG
Introduction | 3 Definitions, Acronyms, and | 4.4.1.1 Identity | XTENSION Keyword
IEEE
3 Definitions, Acronyms, and
IEEE floating point
1.4 Organization of This | 6.3 IEEE-754 Floating Point | 6.3 IEEE-754 Floating Point | 6.3 IEEE-754 Floating Point
IEEE NaN
3 Definitions, Acronyms, and
IEEE special values
3 Definitions, Acronyms, and | DATAMAX Keyword | 6.3 IEEE-754 Floating Point | E Differences from IAU-endorsed | H IEEE Floating Point
IEEE, ANSI
2 References
IMAGE
8.2 Image Extension | XTENSION Keyword
image extension
Introduction | 1.2 Scope | 1.4 Organization of This | 2 References | 8.2 Image Extension | NAXIS Keyword | NAXISn Keywords | 8.2.2 Units | F Summary of Keywords
INSTRUME
INSTRUME Keyword
integer, 16-bit
6.2.2 Sixteen-bit | 16-Bit Integer
integer, 32-bit
6.2.3 Thirty-two-bit | 32-Bit Integer | Array Descriptor
integer, 8-bit
6.2.1 Eight-bit | Unsigned 8-Bit Integer
integer, complex
5.2.5 Complex Integer Number | E Differences from IAU-endorsed
interferometry
7 Random Groups Structure
IUE
2 References | 3 Definitions, Acronyms, and
IUEIMAGE
I Reserved Extension Type
keyword, commentary
5.1.2.2 Value Indicator (bytes | COMMENT Keyword
keyword, indexed
3 Definitions, Acronyms, and | 5.1.2.1 Keyword (bytes 1-8) | NAXISn Keywords | E Differences from IAU-endorsed
keyword, mandatory
8.1.1 Mandatory Keywords | E Differences from IAU-endorsed
keyword, new
5.4.3.1 Requirements | 5.4.3.1 Requirements
keyword, order
5.4.1.1 Principal | 5.4.1.2 Conforming Extensions | 7.1.1 Mandatory Keywords | 8.1.1 Mandatory Keywords
keyword, required
1.2 Scope | 1.4 Organization of This | 3 Definitions, Acronyms, and | 5.4.1 Mandatory Keywords | 5.4.1.2 Conforming Extensions | EXTEND Keyword | 7.1.1 Mandatory Keywords | 8.2.1 Mandatory Keywords | 8.3.1 Mandatory Keywords | E Differences from IAU-endorsed | E Differences from IAU-endorsed
keyword, reserved
1.2 Scope | 1.4 Organization of This | 3 Definitions, Acronyms, and | 5.4.2 Other Reserved Keywords | 7.1.2.1 PTYPEn Keywords | 8.1.2 Other Reserved Keywords | 8.3.2 Other Reserved Keywords | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed
keyword, restrictions
5.4.3.2 Restrictions | 5.4.3.2 Restrictions
keyword, valid characters
5.1.2.1 Keyword (bytes 1-8)
list-directed input
E Differences from IAU-endorsed
list-directed read
E Differences from IAU-endorsed | E Differences from IAU-endorsed
logical value
5.2.2 Logical
mantissa
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | E Differences from IAU-endorsed
NaN, IEEE
Single Precision Floating Point | Double Precision Floating Point
NAXIS
4.3 Primary Header and | 4.3.2 Primary Data Array | 5.4.1.1 Principal | 7.1.1.3 NAXIS Keyword | 5.4.1.2 Conforming Extensions | EXTEND Keyword | BLOCKED Keyword | 7.1.1 Mandatory Keywords | NAXIS Keyword | 7.2 Data Sequence | NAXIS Keyword | NAXIS Keyword | NAXIS Keyword | E Differences from IAU-endorsed | E Differences from IAU-endorsed
NAXIS1
7.1.1.4 NAXIS1 Keyword | NAXIS1 Keyword | 8.1.3 Data Sequence | NAXIS1 Keyword | TFORMn Keywords | THEAP Keyword | 8.3.3.1 Main Data Table | B.1 ``Variable Length Array'' | E Differences from IAU-endorsed
NAXIS2
NAXIS2 Keyword | 8.1.3 Data Sequence | NAXIS2 Keyword | THEAP Keyword | 8.3.3.1 Main Data Table | B.1 ``Variable Length Array'' | E Differences from IAU-endorsed
NAXISn
4.3 Primary Header and | 4.3.2 Primary Data Array | 5.4.1.1 Principal | NAXISn Keywords | 5.4.1.2 Conforming Extensions | EXTEND Keyword | CRPIXn Keywords | 7.1.1 Mandatory Keywords | 7.1.1.5 NAXISn Keywords (n=2, NAXIS) | 7.2 Data Sequence | NAXISn Keywords | E Differences from IAU-endorsed
NOST
3 Definitions, Acronyms, and
NRAO
I Reserved Extension Type
NULL, ASCII
3 Definitions, Acronyms, and | Character
OBJECT
OBJECT Keyword
OBSERVER
OBSERVER Keyword
offset
B.1 ``Variable Length Array''
order, FITS structures
4.1 Overall
order, array index
4.3.2 Primary Data Array
order, byte
6 Data Representation
order, extensions
4.4.3 Order of Extensions
order, keyword
5.1.1 Syntax | 5.4.1.1 Principal | 5.4.1.2 Conforming Extensions | 7.1.1 Mandatory Keywords | 8.1.1 Mandatory Keywords
ORIGIN
ORIGIN Keyword
parameter
Introduction | PCOUNT Keyword | 7.1.2.1 PTYPEn Keywords | 7.2 Data Sequence | 7.3 Data Representation
PCOUNT
5.4.1.2 Conforming Extensions | 7.1.1.7 PCOUNT Keyword | 7.1.1 Mandatory Keywords | PCOUNT Keyword | 7.2 Data Sequence | PCOUNT Keyword | PCOUNT Keyword | PCOUNT Keyword | B.1 ``Variable Length Array''
physical value
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | BSCALE Keyword | BLANK Keyword | DATAMAX Keyword | 7.1.2.2 PSCALn Keywords | 7.3 Data Representation | TSCALn Keywords | TSCALn Keywords | E Differences from IAU-endorsed | E Differences from IAU-endorsed
primary data array
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.3 Primary Header and | 4.3.2 Primary Data Array | 5.4.1.2 Conforming Extensions | BSCALE Keyword | SIMPLE Keyword | 7.1.1.4 NAXIS1 Keyword | 7.2 Data Sequence | 8.2.3 Data Sequence | E Differences from IAU-endorsed
primary header
1.4 Organization of This | 3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.3 Primary Header and | 5.4.1.1 Principal | XTENSION Keyword | EXTEND Keyword | 5.4.3.2 Restrictions | 7.1.1 Mandatory Keywords | C.3.2 Other Media | E Differences from IAU-endorsed
PSCALn
7.1.2.2 PSCALn Keywords | 7.3 Data Representation | E Differences from IAU-endorsed
PTYPEn
7.1.2.1 PTYPEn Keywords | 7.3 Data Representation
PZEROn
7.1.2.3 PZEROn Keywords | 7.3 Data Representation | E Differences from IAU-endorsed
random groups
Introduction | 1.2 Scope | 1.4 Organization of This | 2 References | 3 Definitions, Acronyms, and | 5.4.2.5 Array Keywords | 7 Random Groups Structure | 7.1.1 Mandatory Keywords | E Differences from IAU-endorsed
random groups array
Introduction | 7.2 Data Sequence
REFERENC
REFERENC Keyword
reference point
3 Definitions, Acronyms, and | CRPIXn Keywords | E Differences from IAU-endorsed
registration, extension
4.4.1.1 Identity
repeat count
3 Definitions, Acronyms, and | TFORMn Keywords | 8.3.3.1 Main Data Table | Character
scaling, data
BZERO Keyword | 7.1.2.3 PZEROn Keywords | 7.3 Data Representation | TZEROn Keywords | TZEROn Keywords | E Differences from IAU-endorsed
sign bit
6 Data Representation
sign character
8.1.5 Entries
significand
3 Definitions, Acronyms, and
SIMPLE
SIMPLE Keyword
SIMPLE, before random groups
7.1.1 Mandatory Keywords
SIMPLE, in primary header
5.4.1.1 Principal | 7.1.1.1 SIMPLE Keyword
SIMPLE, in special records
4.5 Special Records
slash
5.1.2.3 Value/Comment (bytes 11-80)
special records
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 4.1 Overall | 4.5 Special Records
special values, IEEE
Single Precision Floating Point | Double Precision Floating Point
standard extension
3 Definitions, Acronyms, and | 4.4.2 Standard Extensions | 4.4.3 Order of Extensions | XTENSION Keyword | 8.1 The ASCII Table | 8.2 Image Extension | 8.3 Binary Table Extension | E Differences from IAU-endorsed
substring arrays
B.3 ``Substring Array'' Convention
TABLE
XTENSION Keyword
TABLE extension
E Differences from IAU-endorsed | F Summary of Keywords | I Reserved Extension Type
tape, 9-track half-inch
Introduction
TBCOLn
TBCOLn Keywords
TDIMn
TDIMn Keywords | B.1 ``Variable Length Array'' | B.2 ``Multidimensional Array'' Convention | B.3 ``Substring Array'' Convention | E Differences from IAU-endorsed
TDISPn
TDISPn Keywords | E Differences from IAU-endorsed
TELESCOP
TELESCOP Keyword
TFIELDS
TFIELDS Keyword | TFIELDS Keyword | E Differences from IAU-endorsed
TFORMn
TFORMn Keywords | TFORMn Keywords | Logical | Unsigned 8-Bit Integer | Single Precision Floating Point | Single Precision Complex | Array Descriptor | B.1 ``Variable Length Array'' | B.3 ``Substring Array'' Convention | E Differences from IAU-endorsed
THEAP
THEAP Keyword | B.1 ``Variable Length Array'' | E Differences from IAU-endorsed
time system
DATE-OBS Keyword
TNULLn
TNULLn Keywords | 8.1.5 Entries | TNULLn Keywords | Unsigned 8-Bit Integer | 16-Bit Integer | 32-Bit Integer
TSCALn
TSCALn Keywords | TUNITn Keywords | TUNITn Keywords | TSCALn Keywords | B.1 ``Variable Length Array'' | E Differences from IAU-endorsed
TTYPEn
TTYPEn Keywords | TTYPEn Keywords
TUNITn
TUNITn Keywords | TUNITn Keywords | E Differences from IAU-endorsed | E Differences from IAU-endorsed
twos-complement
6.2.2 Sixteen-bit | 6.2.3 Thirty-two-bit
TZEROn
TZEROn Keywords | TUNITn Keywords | TUNITn Keywords | TZEROn Keywords | B.1 ``Variable Length Array'' | E Differences from IAU-endorsed
underscore
5.1.2.1 Keyword (bytes 1-8) | TTYPEn Keywords
units
3 Definitions, Acronyms, and | 3 Definitions, Acronyms, and | 5.3 Units | BUNIT Keyword | CRPIXn Keywords | CDELTn Keywords | TUNITn Keywords | 8.2.2 Units | TUNITn Keywords | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed | E Differences from IAU-endorsed
Universal Time
DATE Keyword | E Differences from IAU-endorsed
value
DATE Keyword | DATE Keyword
value, undefined
TNULLn Keywords | 8.1.5 Entries | TNULLn Keywords
variable length array
B.1 ``Variable Length Array'' | B.1 ``Variable Length Array''
XTENSION
3 Definitions, Acronyms, and | 4.5 Special Records | XTENSION Keyword | EXTNAME Keyword | 8.1 The ASCII Table | XTENSION Keyword | 8.2 Image Extension | XTENSION Keyword | 8.3 Binary Table Extension | XTENSION Keyword | E Differences from IAU-endorsed




5/13/1999