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Table 4

Frequency and amplitude variations of the 7 largest amplitude modes in PG 0122+200 measured from 1986 to 2008.

HJD Date Frequency σ A δA
(μHz) (μHz) (mma) (mma)

2 446 764.2 1986.11 2221.030 0.107 7.28 0.26
2 448 209.2 1990.10/12 2221.392 0.036 3.97 0.29
2 450 340.8 1996.09 2221.161 0.022 5.44 0.34
2 451 461.6 1999.10 2221.067 0.073 3.71 0.24
2 452 229.7 2001.10/12 2221.314 0.012 7.20 0.20
2 452 557.9 2002.10 2221.478 0.031 3.13 0.09
2 453 648.1 2005.10 2221.540 0.054 12.64 0.50
2 454 766.3 2008.10 2221.809 0.067 5.84 0.20
2 448 209.2 1990.10/12 2224.942 0.043 3.24 0.20
2 450 340.8 1996.09 2224.850 0.025 5.02 0.21
2 451 461.6 1999.10 2224.687 0.029 5.25 0.29
2 452 229.7 2001.10/12 2224.826 0.024 4.00 0.22
2 452 557.9 2002.10 2224.807 0.012 4.61 0.09
2 453 648.1 2005.10 2225.237 0.147 4.67 0.52
2 454 766.3 2008.10 2224.849 0.072 5.88 0.17
2 448 209.2 1990.10/12 2227.985 0.049 4.48 0.26
2 450 340.8 1996.09 2227.557 0.029 3.05 0.26
2 451 461.6 1999.10 2228.182 0.030 6.00 0.27
2 452 229.7 2001.10/12 2228.272 0.028 3.69 0.21
2 452 557.9 2002.10 2228.156 0.013 4.75 0.09
2 454 766.3 2008.10 2228.376 0.151 5.80 0.17
2 446 764.2 1986.11 2490.294 0.060 8.38 0.22
2 448 209.2 1990.10/12 2490.777 0.110 3.12 0.22
2 450 340.8 1996.09 2490.249 0.018 9.37 0.34
2 451 461.6 1999.10 2490.517 0.083 3.34 0.27
2 452 229.7 2001.10/12 2490.160 0.018 6.11 0.23
2 452 557.9 2002.10 2490.657 0.010 5.10 0.10
2 453 648.1 2005.10 2490.543 0.197 4.86 0.50
2 454 766.3 2008.10 2490.515 0.060 4.85 0.19
2 448 209.2 1990.10/12 2494.214 0.058 5.95 0.23
2 450 340.8 1996.09 2493.769 0.028 5.50 0.35
2 451 461.6 1999.10 2493.841 0.029 9.30 0.22
2 452 229.7 2001.10/12 2493.850 0.019 4.81 0.25
2 452 557.9 2002.10 2493.806 0.014 4.24 0.10
2 454 766.3 2008.10 2494.148 0.099 4.19 0.14
2 446 764.2 1986.11 2497.106 0.036 12.07 0.22
2 448 209.2 1990.10/12 2497.331 0.013 11.62 0.25
2 450 340.8 1996.09 2497.535 0.016 8.98 0.32
2 451 461.6 1999.10 2497.329 0.018 9.29 0.31
2 452 229.7 2001.10/12 2497.468 0.011 9.75 0.22
2 452 557.9 2002.10 2497.176 0.005 11.68 0.08
2 453 648.1 2005.10 2497.270 0.048 15.24 0.41
2 454 766.3 2008.10 2497.237 0.022 13.81 0.18
2 446 764.2 1986.11 2973.756 0.091 4.98 0.23
2 448 209.2 1990.10/12 2973.760 0.035 4.75 0.24
2 450 340.8 1996.09 2973.707 0.017 5.60 0.24
2 451 461.6 1999.10 2973.804 0.031 5.33 0.26
2 452 229.7 2001.10/12 2973.753 0.022 4.78 0.22
2 452 557.9 2002.10 2973.870 0.014 4.03 0.10
2 453 648.1 2005.10 2973.989 0.209 4.96 0.48
2 454 766.3 2008.10 2973.857 0.055 5.93 0.20

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