PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-16:28:10
G02     247.2          75.2                8.2 +/-    0.42       8.5 +/-    0.42  0.170 / 0.240
G05     171.2          18.4               11.9 +/-    1.17      27.1 +/-    1.17  0.200 / 0.180
G06     40.6           52.7                8.9 +/-    0.46      10.9 +/-    0.46  0.110 / 0.120
G12     322.9          60.7                7.4 +/-    0.92       8.4 +/-    0.92  0.100 / 0.110
G17     74.4           18.8                6.7 +/-    2.37      15.2 +/-    2.37  0.270 / 0.390
G19     57.4           39.8                7.9 +/-    1.16      11.6 +/-    1.16  0.180 / 0.340
G24     239.7          32.7                8.1 +/-    1.43      13.4 +/-    1.43  0.030 / 0.030
G25     317.1          16.0                5.7 +/-    2.62      13.8 +/-    2.62  0.030 / 0.030