ATT_LAN format
					
				Nov.30, 1994
				T. Nakagawa

(1) Primary header (one line, 120 bytes):

	Format  Item          	 comments

	A8	file category	"ATT_LAN " to designate ATT_LAN file
	A24	original file	indicates the sfdu(?) file from which this
				file is crated
	A24	IRTS_LAN file	indicates the corresponding IRTS_LAN file
	A18     time(start) 	same format as 'time' in sfdu-file
	A18     time(end)	same format as 'time' in sfdu-file
	I10    	# of frames   
	I3	version No.
	A14	dummy
	A1	LF	

	*) This file dose not have the secondary header.
	*) The format of time is the following:
		"yy/mm/dd HH:MM:SS\0"
	   where yy:year, mm:month, dd:day,
	   HH:hour (UT), MM:minute, SS:second, and \0:null. 

(2) data

One frame consists of 1.024 sec of data. One frame per one line. The
format of each 	frame is the following (120 bytes / line):

	Format  Item		comments

	A18	Time 		same format as 'time' in sfdu-file
	F9.4	R.A. 		R.A.(1950) of IRTS center axis in degree
	F9.4	Dec.		Dec.(1950) of IRTS center axis in degree
	F9.4	Position Angle 	Position Angle of IRTS FPI
	F9.4	SAA		Solar Avoidance Angle in degree
	F9.4	EAA		Earth Avoidance Angle in degree
	F9.4	LAA		Lunar Avoidance Angle in degree
	F9.2	X_sat		Satellite Position, X
				(in the Cartesian coordinate, in km)
	F9.2	Y_sat		Satellite Position, Y
				(in the Cartesian coordinate, in km)
	F9.2	Z_sat		Satellite Position, Z
				(in the Cartesian coordinate, in km)
	I2	Thrust		Thruster Flag 
	I1	BIO/MEX		BIO/MEX On/Off Flag
	I1	BA		Brazil Anormaly In/Out Flag
	I1	GP		Galactic Plane In/Out Flag
	I1	DN		Day/Night Flag
	I3	Ver		Version of Attitude data
	A11	dummy 
	A1	LF

Comments
	On/Off Flag ->	 	1:On, 0:Off
	In/Out Flag ->	 	1:In, 0:Out
	Thruster Flag ->	details T.B.D.
	Ver. No. -> 		0: not determined
				1: interpolated from 2
				2: determined based on NGC data
				3: updated once according to STS data