PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/31-07:27:50
G02     5.3            74.3                2.8 +/-    0.45       2.9 +/-    0.45  0.040 / 0.060
G05     161.4          38.4                5.0 +/-    0.80       7.5 +/-    0.80  0.050 / 0.060
G06     42.0           39.5                1.9 +/-    1.32       2.8 +/-    1.32  0.020 / 0.030
G12     303.9          73.5                4.8 +/-    0.95       5.0 +/-    0.95  0.020 / 0.030
G17     89.6           9.5                 5.8 +/-    2.10      16.2 +/-    2.10  0.150 / 0.220
G19     79.5           24.2                4.4 +/-    1.10       8.7 +/-    1.10  0.270 / 0.280
G24     226.0          20.0                5.0 +/-    2.22      11.0 +/-    2.22  0.080 / 0.100
G25     316.5          32.3                4.0 +/-    1.15       6.7 +/-    1.15  0.080 / 0.130
G29     290.2          13.0                5.5 +/-    3.02      14.4 +/-    3.02  0.130 / 0.300