SKY2000 Catalog Binary Entry Format

Each catalog entry in SKY2000 contains 28 bytes with the following information:
Real*4 XNO		Catalog number of star
Real*8 SRA0		J2000 Right Ascension (radians)
Real*8 SDEC0		J2000 Declination (radians)
Character*2 IS		Spectral type (2 characters)
Integer*2 MAG(1)	B Magnitude * 100
Integer*2 MAG(2)	V Magnitude * 100
Integer*2 MAG(3)	Photographic Magnitude * 100
Integer*2 MAG(4)	Photovisual Magnitude * 100
Real*4 XRPM		R.A. proper motion (radians per year)
Real*4 XDPM		Dec. proper motion (radians per year)
Each catalog entry in SKY2000ra contains 32 bytes with the following information:
Real*4 XNO		Catalog number of star
Real*8 SRA0		B1950 Right Ascension (radians)
Real*8 SDEC0		B1950 Declination (radians)
Character*2 IS		Spectral type (2 characters)
Integer*2 MAG(1)	B Magnitude * 100
Integer*2 MAG(2)	V Magnitude * 100
Integer*2 MAG(3)	Photographic Magnitude * 100
Integer*2 MAG(4)	Photovisual Magnitude * 100
Real*4 XRPM		R.A. proper motion (radians per year)
Real*4 XDPM		Dec. proper motion (radians per year)

Sample Entries

The first and last entries in the SKY2000 catalog file are:

> ssky2k -h 1,299167

ssky2k WCSTools 3.6.5, 16 June 2006, Doug Mink SAO
SKY_id     RA2000       Dec2000      MagB   MagV  MagPh  MagPv Type
0000001 00:00:00.216 +01:05:20.43    9.56   9.08   9.30   9.30  F5
2359199 23:59:57.132 -20:02:09.77   10.36   9.50  10.50   9.40  G5

The first and last entries in the RA-sorted SKY2000ra catalog file are: