CATS: does it recognize the SOPAC NEU ascii format time series?

The format of data files given in CATS examples is different from that of SOPAC products. The latter has 2 superfluous columns: 2nd-year, and 3rd-doy. I have convert the SOPAC format to CATS format to make it work.

Question: what's the meaning of CATS output?

One log file looks like:
[tianyf@gpsac sopac]$ more voltCleanUnf.neu.cat.fn_mle
Cats Version : 3.1.2
Cats command : cats --sinusoid 1y1 --model pl:k-1 --verbose --output voltCleanU
nf.neu.cat.fn_mle --psdfile voltCleanUnf.neu.cat.fn_mle.psd //home/tianyf/cats_v
3.1.2/sopac/sopac_catfmt/voltCleanUnf.neu.cat
Data from file : //home/tianyf/cats_v3.1.2/sopac/sopac_catfmt/voltCleanUnf.neu.
cat
cats : running on gpsac
Linux release 2.6.18-8.el5 (version #1 SMP Fri Jan 26 14:15:14 EST 2007) on x86
_64
userid : tianyf

Sampling frequency 1.17366e-05 (Hz), 0.99 days
Number of samples 1 period apart = 1723 of 1835
Number of points in full series = 2177
Number of series to process : 3
Start Time : Sun Jan 6 01:49:49 2008

+NORT POWER LAW NOISE
+NORT INDEX : -1.0000
+NORT PL : IS FREE

Time taken to create covariance matrix 9.230000 seconds and compute eigen value
and vectors : 78.730000 seconds
Time taken to create cholesky of covariance matrix : 2.530000 seconds
Time taken to estimate mle 0.130000 seconds
+NORT MLE : -2842.635725
+NORT INTER : -63.8343 +- 0.8031
+NORT SLOPE : 18.2041 +- 0.2652
+NORT SIN : -0.2950 +- 0.2590
+NORT COS : 0.1171 +- 0.2673
+NORT SIN : -0.4798 +- 0.1877
+NORT COS : -0.0053 +- 0.1893
+NORT POWER LAW NOISE
+NORT INDEX : -1.0000
+NORT PL : 4.9438 +- 0.0816

+EAST POWER LAW NOISE
+EAST INDEX : -1.0000
+EAST PL : IS FREE

Time taken to create covariance matrix 8.400000 seconds and compute eigen value
and vectors : 78.710000 seconds
Time taken to create cholesky of covariance matrix : 2.530000 seconds
Time taken to estimate mle 0.130000 seconds
+EAST MLE : -3189.006725
+EAST INTER : -82.0264 +- 0.9699
+EAST SLOPE : 21.0756 +- 0.3203
+EAST SIN : -0.6818 +- 0.3128
+EAST COS : -0.3644 +- 0.3227
+EAST SIN : 0.0749 +- 0.2266
+EAST COS : 0.0081 +- 0.2285
+EAST POWER LAW NOISE
+EAST INDEX : -1.0000
+EAST PL : 5.9703 +- 0.0985

+VERT POWER LAW NOISE
+VERT INDEX : -1.0000
+VERT PL : IS FREE

Time taken to create covariance matrix 8.370000 seconds and compute eigen value
and vectors : 78.700000 seconds
Time taken to create cholesky of covariance matrix : 2.540000 seconds
Time taken to estimate mle 0.120000 seconds
+VERT MLE : -5588.653583
+VERT INTER : 1.3811 +- 3.5837
+VERT SLOPE : -0.8162 +- 1.1834
+VERT SIN : -0.5897 +- 1.1557
+VERT COS : 0.4890 +- 1.1925
+VERT SIN : -0.7284 +- 0.8374
+VERT COS : 0.9441 +- 0.8445
+VERT POWER LAW NOISE
+VERT INDEX : -1.0000
+VERT PL : 22.0606 +- 0.3641

End Time : Sun Jan 6 01:54:20 2008

Total Time : 271