Output file descriptions

The following tables contain the descriptions of the column format for the output formats. See http://msc.caltech.edu/KISupport/v2/KIV2dataProducts.html for descriptions of the INFO and CALIB output formats.

Table 2: Description of columns in the RAW output.

Raw samples
Column	Variable	Description
1	RAW	File indentifier
2	time	UT time (decimal hours)
3	delay	delay line position (meters)
4	z
5	a
6	b	Raw values as read from IR array
7	c	not yet divided by number of sub-reads
8	d
9	sflag	servo mode value
10	tflag	track mode value
11	cflag	calibration mode value

Table 3: Description of columns in the SAMPLE output. Internal calibrations and dewarping applied to X,Y,N and NUM.

Samples
Column	Variable	Description
1	SAMPLE	File indentifier
2	date	month/day/year/hour:min:sec
3	time	UT time (decimal hours)
4	source	source name
5	delay	delay line position (meters)
6	channel	WL = 0, spectrometer starts at 1
7	z
8	a
9	b	Raw values as read from CCD
10	c	not yet divided by number of sub-reads
11	d
12	X	fringe quadrature (A - C)
13	Y	fringe quadrature (B - D)
14	N	total flux (A + B + C + D)
15	NUM	energy (X2 + Y2)
16	V2	squared visibility
17	phase	unwrapped fringe phase (radians)
18	opd	optical path difference as measured by fringe tracker ($\mu$m)

Table 4: Description of columns in the FRAME output.

Frames
Column	Variable	Description
1	FRAME	File indentifier
2	date	month/day/year/hour:min:sec
3	time	UT time (decimal hours)
4	source	source name
5	delay	delay line position (meters)
6	channel	WL= 0, spectrometer starts at 1
7	# samp	Number of samples averaged in this frame
8	X	fringe quadrature (A - C)
9	Y	fringe quadrature (B - D)
10	N	total flux (A + B + C + D)
11	NUMI	incoherent energy (X2 + Y2)
12	NUMC	coherent energy (X2 + Y2)

Table 5: Description of columns in the SUM output.

Blocks
Column	Variable	Description
1	SUM	File indentifier
2	date	month/day/year/hour:min:sec
3	time	UT time (decimal hours)
4	source	source name
5	FDL	fast delay line position (meters)
6	LDL	long delay line position (meters)
7	N(WB)	wide-band photons (in DN)
8	V2i(WB)	incoherent wide-band squared visibility
9	V2c(WB)	coherent wide-band squared visibility
10	$\lambda$(WB)	wide-band wavelength (microns)
11	N(S)	average spectral channel photons (in DN)
12	V2i(S)	incoherent V2 from weighted average of spec channels
13	V2c(S)	coherent V2 from weighted average of spec channels
14	$\lambda$(S)	weighted average of spec channel wavelengths (microns)
15	jitter	rms of difference between sample phases (radians)
16	# frames	number of frames in this block
17	# locks	number of lock breaks in this block
18	fracTime	fractional time locked on fringe
19	FT rate	fringe tracker sample rate (Hz)
20	RC(WB)	wide-band ratio correction
21	RC(S)	weighted average spec ratio correction
22	flag	calibration flag
23	baseline	baseline designation

Table 6: Description of columns in the SPEC output.

Spectral channel blocks
Column	Variable	Description
1	SPEC	File indentifier
2	date	month/day/year/hour:min:sec
3	time	UT time (decimal hours)
4	source	source name
5	FDL	fast delay line position (meters)
6	LDL	long delay line position (meters)
7	jitter	rms phase jitter (radians)
8	FT rate	fringe tracker sample rate (Hz)
9	flag	calibration flag
10	baseline	baseline designation
11	nch	number of spectral channels
12	$\lambda$	wavelength for channel 1 ($\mu$m)
13	N	number of photons (in DN) for channel 1
14	V2i(1)	incoherent V2 for channel 1
15	V2c(1)	coherent V2 for channel 1
16	RC(1)	ratio correction for channel 1
$\vdots$	$\vdots$	$\vdots$
nch*5 + 7	$\lambda$	wavelength for channel nch ($\mu$m)
nch*5 + 8	N	number of photons (in DN) for channel nch
nch*5 + 9	V2i	incoherent V2 for channel nch
nch*5 + 10	V2c	coherent V2 for channel nch
nch*5 + 11	RC	ratio correction for channel nch

Table 7: Description of columns in the ANC output.

Ancillary
Column	Variable	Description
1	ANC	File indentifier
2	date	month/day/year/hour:min:sec
3	time	UT time (decimal hours)
4	source	source name
5	V2i(WB)	incoherent wide-band squared visibility
6	jitter	rms of difference between sample phases (radians)
7	N(WB)	wide-band photons (in DN)
8	N(WB) rms	wide-band rms/mean
9	WB ratio	Wide-band ratio (Keck 1/Keck 2)
10	Spec ratio	Summed spectrometer ratio (Keck 1/Keck 2)
11	ST(K1)	Keck 1 Star tracker mean intensity (DN)
12	ST(K2)	Keck 2 Star tracker mean intensity (DN)
13	ST rate	Star tracker rate (Hz)
14	Az(K1)	Keck 1 azimuth (radians)
15	Elev(K1)	Keck 1 elevation (radians)
16	Az err(K1)	Keck 1 azimuth error (radians)
17	El err(K1)	Keck 1 elevation error (radians)
18	Az(K2)	Keck 2 azimuth (radians)
19	Elev(K2)	Keck 2 elevation (radians)
20	Az err(K2)	Keck 2 azimuth error (radians)
21	El err(K2)	Keck 2 elevation error (radians)
22	AO cnts(K1)	Keck 1 Mean wave-frint sensor counts
23	AO rate (K1)	Keck 1 AO correction loop rate (Hz)
24	AO DT gain(K1)	Keck 1 AO tip-tile loop gain
25	SO DM gain(K1)	Keck 1 AO deformable mirror loop gain
26	AO cnts(K2)	Keck 2 Mean wave-frint sensor counts
27	AO rate (K2)	Keck 2 AO correction loop rate (Hz)
28	AO DT gain(K2)	Keck 2 AO tip-tile loop gain
29	SO DM gain(K2)	Keck 2 AO deformable mirror loop gain