PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-19:12:50
G10     272.0          40.4               14.8 +/-    1.13      21.4 +/-    1.13  0.090 / 0.140
G13     40.4           15.9               12.0 +/-    2.09      29.3 +/-    2.09  0.100 / 0.170
G15     54.2           44.2               13.5 +/-    0.77      18.4 +/-    0.77  0.040 / 0.040
G18     314.1          66.2               12.5 +/-    0.72      13.6 +/-    0.72  0.040 / 0.040
G20     57.4           32.1               12.5 +/-    1.05      21.0 +/-    1.05  0.070 / 0.120
G21     29.2           75.1               14.1 +/-    0.63      14.5 +/-    0.63  0.060 / 0.120
G24     117.5          16.7               14.3 +/-    1.41      34.0 +/-    1.41  0.080 / 0.240
G27     315.3          23.8               10.7 +/-    2.19      21.5 +/-    2.19  0.090 / 0.250
G29     165.7          20.4               14.3 +/-    1.58      31.2 +/-    1.58  0.120 / 0.520
G32     205.9          11.5                1.5 +/-   40.56       4.2 +/-   40.56  0.110 / 0.600