PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-09:57:40
G01     120.9          16.5                5.4 +/-    1.16      12.9 +/-    1.16  0.030 / 0.040
G07     76.4           67.0                5.8 +/-    1.06       6.2 +/-    1.06  0.020 / 0.040
G08     45.2           31.6                3.5 +/-    1.09       6.0 +/-    1.09  0.030 / 0.040
G09     174.2          24.1                6.6 +/-    0.83      13.1 +/-    0.83  0.030 / 0.040
G11     107.9          39.3                7.0 +/-    0.65      10.3 +/-    0.65  0.110 / 0.230
G13     318.5          18.1                2.8 +/-    1.88       6.4 +/-    1.88  0.100 / 0.260
G17     200.6          23.8                3.6 +/-    0.83       7.2 +/-    0.83  0.090 / 0.170
G18     95.1           20.0                6.3 +/-    0.76      13.8 +/-    0.76  0.080 / 0.180
G28     287.7          56.0                5.6 +/-    0.74       6.6 +/-    0.74  0.100 / 0.240
G30     340.3          65.8                3.9 +/-    0.45       4.2 +/-    0.45  0.110 / 0.270