PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-01:57:40
G01     298.0          38.2                8.1 +/-    0.74      12.1 +/-    0.74  0.080 / 0.130
G03     309.5          11.4               -4.0 +/-   28.09     -11.0 +/-   28.09  0.060 / 0.110
G10     114.9          32.8                7.9 +/-    0.65      13.1 +/-    0.65  0.060 / 0.070
G11     270.3          27.3                7.8 +/-    1.26      14.4 +/-    1.26  0.050 / 0.070
G14     13.4           62.6                8.0 +/-    0.64       8.9 +/-    0.64  0.080 / 0.100
G18     260.3          49.6                8.1 +/-    1.37      10.3 +/-    1.37  0.080 / 0.090
G22     312.5          32.8                6.8 +/-    1.52      11.3 +/-    1.52  0.040 / 0.070
G25     70.8           17.7                5.2 +/-    0.99      12.2 +/-    0.99  0.040 / 0.060
G31     148.5          74.9                9.6 +/-    0.98       9.9 +/-    0.98  0.100 / 0.200
G32     46.5           45.0                6.7 +/-    0.81       9.1 +/-    0.81  0.100 / 0.180