ICATS Serial Output Format				
Appendix B				
The following format is for the DC-8 navigation and housekeeping data.  The data is transferred at one second intervals.  Parameter fields within each block are  separated by at least one space, and there may be one or more blanks at the end of a block to pad the length to 56 characters				
				
Identifier	Parameters	Field Format	Units	
C	Day	aaa	day of year	
	Time	bb:bb:bb.bbb	hours:min:sec (UTC)	
	Latitude	+/- cc cc.c	degrees & minutes	
	Longitude	+/- ddd dd.d	degrees & minutes	
	Pitch	eee.e	degrees	
	Roll	ffff.f	degrees	
	Wind Speed	ggg	knots	

D	Wind Direction	hhh	degrees	
	True Air Speed	iii	knots	
	Ground Speed	jjjj	knots	
	True Heading	kikk.I	degrees
	Drift Angle	lll.l	degrees
	Pressure Altitudes	mmmmm	feet
	Radar Altitude	nnnnn	feet
	Dew/frost Point (GE 1011 hygrometer), with state flagged	ooooo.o	deg C
	Dew/frost Point (EG&G 300 hygrometer), with state flagged	ppppp.p	deg C
			
Identifier	Parameters	Field Format	Units
E	Static Air Temperature	qqq.q	deg C
	Total Air Temperature	rrr.r	deg C
	IR Surface Temperature	sss.s	deg C
	Static Air Temperature, calculated	ttt.t	deg C
	Indicated Air Speed	uuu	knots
	Vertical Air Speed	vvvvv	ft/min
	Distance To Go	wwwww.w	nm
	Time to Go	xxxx,x	min
	Align Status	yy	

F	Cabin Altitude	zzzzz	feet
	Pressure	JJJJ.J	mb
	Mach Number	K.KKK	
	Cross Track Distance	LLLLL.L	nm
	Desired Track	MMMM.M	deg
	Track Angle Error	NNNN.N	deg
	Track Angle	OOO.O	deg
	Specific Humidity	P.PPP	g H2O/kg air

G	Partial pressure H2O	QQ.Q	mb
	Relative Humidity wrt to Ice	RR.R	%
	Relative Humidity wrt to Water	SS.S	%
	Saturatin Vapor Pressureof Water	TT.TT	mb
	Saturation Vapor Pressure of Water Relative to Ice	UU.UU	mb
	Sun Elevation in Ground Reference Frame, Refracted	VVV.V	deg	
	Sun Elevation in Aircraft Reference Frame, Refracted	WWW.W	deg	
	Sun Azimuth in Ground Reference Frame	XXX.X	deg	
	Sun Azimuth in Aircraft reference Frame Relative to the Nose of the Aircraft	YYYY.Y	deg	

	Name	Format	Range	Real Parameter
H	egi_true_hddg	%5.lf	0 to 360 deg	eo17_pres_tru_hdg
	egi_mag_hdg	%5.lf	0 to 360 deg	eo17_pres_mag_hdg
	egi_x_velocity	%5d	x/- 9000	eo17_velocity_x
	egi_y_velocity	%5d	x/- 9000	eo17_velocity_y
	egi_z_velocity	%5d	x/- 9000	eo17_velocity_z
	egi_x_acceleration	%5d	x/- 1100	eo17_accel_x
	egi_y_acceleration	%5d	x/- 1100	eo17_accel_y
	egi_z_acceleration	%5d	x/- 1100	eo17_accel_z

	Name	Format	Range	Real Parameter
I	adc_tat	%5.lf	-99.0 to 50.0	adc_tat
	rose_tat	%5.lf	-99.0 to 50.0	rose_tat
	potent_temp	%5.lf	-999.9 to 1000.0	potent_temp
	gps_alt_msl	%5d	-2000 to 70000	gps_alt_msl
	camex_dfpoint	%6.lf	-100.0 to 70.0	camex_dfpoint
	sun_el_ea	%5.lf	-90.0 to 90.0	sun_el_ea
	sun_el_ac	%5.lf	-90.0 to 90.0	sun_el_ac
	sun_az_earth	%5.lf	0 to 360	sun_az_earth

General				
All data parameters are in engineering units.  For integer formats, the number of digits in a field may vary from one to the number shown in the field format.  For non-integer formats, the placement of the decimal point within the field and the number of digits to the right of the decimal point are guaranteed as illustrated in the field format.  However, the number of digits to the left of the decimal point may vary from one to the number shown in the field format.  				

Individual parameter fields will be filled with special characters for the following reasons:				

	Condition	Special Character		
	Data too big for parameter field	>		
	Data  too small for parameter field	<
	Data formating error occurred	?