If xcsao.debug=yes, the following listing is sent to standard output.
rv> xcsao
List of input spectra (22408):
XCSAO: next file is 22408 [0] = 1 aps
GETSPEC: 22408 0
GETIMAGE: 4096 x 1 x 1 1-D image: spectrum 0
GETIMAGE: Ready to open MWCS
GETIMAGE: Ready to open SH
GETIMAGE: Ready to get image line
GETIMAGE: line = 1, aperture = 1 INDEF
GETSPEC: 0936+1659B 4096 pixels read
GETSPEC: about to read velocity info
VRHEAD: Reading combined velocity info
XCRHEAD: Reading cross-correlation info
EMRHEAD: Emission line info read
GETSPEC: hcvel = -25.872, bcvel = 0.000, svcor = 2
GETSPEC: vel: 0.000 hcv: 0.000 bcv? yes
GETSPEC: lambda 4609.5601 - 7065.2500 by 0.5997 = 4096 points
GETSPEC: log lambda 3.6636595 - 3.8491275 by 0.0000453
XCFIT: filter is 5 20 250 125
XCFIT: 2048 points in spectrum, up to 4096 points in transforms
GETTEMP: 1 archive$templates/ztemp.imh 0
GETIMAGE: 2048 x 1 x 1 1-D image: spectrum 0
GETIMAGE: Ready to open MWCS
GETIMAGE: Ready to open SH
GETIMAGE: Ready to get image line
GETIMAGE: line = 1, aperture = 1 INDEF
GETTEMP: ztemp 2048 pixels read
GETTEMP: 0.0424982 0.0429805 0.0435171
GETTEMP: vel: 0.000 tsh: 0.000 hcv: 0.000
GETTEMP: lambda 4500.0050 - 6500.0072 by 0.9770
GETTEMP: log lambda 3.6532130 - 3.8129138 by 0.0000780 = 2048 points
XCFIT: Keep spectrum data from -100.0000000 to 2.0000000 sigma
XCFIT: Template emission lines left in
XCFIT: Template continuum already subtracted
XCFIT: Continuum subtracted, not divided
XCFIT: Use wavelength limit parameters, if set
XCFIT: Correlation not zero-padded
XCFIT: overlap 4609.560 to 6500.007 by 1.000, npts = 2048
XCFIT: spectrum 4609.560 to 7065.250 = 4096 0
XCFIT: template 4500.0050 to 6500.0072 = 2048 1
XCFIT: Template 0.0424982 0.0429805 0.0435171
XCFIT: Template 0.1230570 0.1401195 0.1433065
XCFIT: filter is 5 20 250 125
XCORFIT: filter is 5 20 250 125
RMSNORM: rms = 6.41752618, 0.17756999, n = 2048, fnorm = 8.56964E-4
PKWIDTH: fracpeak=0.50 * 0.2716327905654907, search from 925 to 2048
PKWIDTH: 1181.447 - 1191.138 = 9.691 c= 1186, h= 0.2716
PKFITP U 1182-1191 10 pts c: 161.353 p: 0.2698 w: 4.744
PKFITP pwu: 9.000 pwl: 11.000 pw: 9.691
XCORFIT: pc= 161.3430694467785198, dlogw=0.0000729137088952
XCORFIT: tcz: 8231.733 c: 161.343 dlogw: 7.291371E-5
XCORFIT: npts: 12 w: 4.803 h: 0.269
PKWIDTH: fracpeak=0.50 * 0.2716327905654907, search from 925 to 2048
PKWIDTH: 1181.447 - 1191.138 = 9.691 c= 1186, h= 0.2716
XCORFIT: R: 4.0530 epsilon: 0.719216 error: 36.2019
XCORFIT: arms: 0.033166 srms: 0.040528
XCORFIT: vwidth: 250.483 km/sec
Best correlation template: ztemp 4.05
GETTEMP: 2 archive$templates/emtemp.imh 0
GETIMAGE: 4096 x 1 x 1 1-D image: spectrum 0
GETIMAGE: Ready to open MWCS
GETIMAGE: Ready to open SH
GETIMAGE: Ready to get image line
GETIMAGE: line = 1, aperture = 1 INDEF
GETTEMP: Emission Template 4096 pixels read
GETTEMP: 0.0000000 0.0000000 0.0000000
GETTEMP: vel: 0.000 tsh: 0.000 hcv: 0.000
GETTEMP: lambda 3500.0000 - 7499.9000 by 0.9768 = 4096 points
GETTEMP: log lambda 3.5440680 - 3.8750555 by 0.0000808
XCFIT: Template emission lines left in
XCFIT: Template continuum already subtracted
XCFIT: Continuum subtracted, not divided
XCFIT: Use wavelength limit parameters, if set
XCFIT: Correlation zero-padded
XCFIT: overlap 4609.560 to 7065.250 by 1.000, npts = 2048
XCFIT: spectrum 4609.560 to 7065.250 = 4096 0
XCFIT: template 3500.0000 to 7499.9000 = 4096 0
XCFIT: Template 0.0000000 0.0000000 0.0000000
XCFIT: Template 0.0000000 0.0000000 0.0000000
XCFIT: filter is 5 20 250 125
XCORFIT: filter is 5 20 250 125
RMSNORM: rms = 8.83571522, 530.860323, n = 4096, fnorm = 1.04099E-7
PKWIDTH: fracpeak=0.50 * 0.0769887417554855, search from 1969 to 3428
PKWIDTH: 2000.847 - 2010.783 = 9.936 c= 2006, h= 0.0770
PKFITP U 2001-2010 10 pts c: -43.319 p: 0.0765 w: 4.846
PKFITP L 2000-2011 12 pts c: -43.240 p: 0.0760 w: 4.964
PKFITP pwu: 9.000 pwl: 11.000 pw: 9.936
XCORFIT: pc= -43.2820706587912340, dlogw=0.0000906048148007
XCORFIT: tcz: -2694.862 c: -43.282 dlogw: 9.060481E-5
XCORFIT: npts: 12 w: 4.901 h: 0.076
PKWIDTH: fracpeak=0.50 * 0.0769887417554855, search from 1969 to 3428
PKWIDTH: 2000.847 - 2010.783 = 9.936 c= 2006, h= 0.0770
XCORFIT: R: 1.8315 epsilon: 1.315957 error: 82.3169
XCORFIT: arms: 0.020821 srms: 0.021045
XCORFIT: vwidth: 307.782 km/sec
22408 Object: 0936+1659B
RA: 09:36:48.00 Dec: 16:59:00.0 1950.0
1991-Apr-13 04:02:26.00 =HJD2448359.6920 BCV: -25.87
4609.6A- 6500.0A 2048x2 points, filter: 5 20 125 250 apodize 0.05 fit 0.5 best 1
Temp: ztemp.imh vel: 0.00 tsh: 0.00 HCV: 0.00 Peak: 8228.15 h:0.254 R: 3.69 CZ: 8201.56 +/- 38.622 1 -el -tf +tc
Temp: emtemp.imh vel: 0.00 tsh: 0.00 HCV: 0.00 Peak: -2687.8 h:0.060 R: 1.59 CZ: -2713.4 +/- 89.949 1 +hi -tf +tc