PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-14:27:40
G01     79.0           33.0                9.0 +/-    0.70      14.8 +/-    0.70  0.080 / 0.130
G07     132.8          34.3                9.0 +/-    1.03      14.5 +/-    1.03  0.060 / 0.120
G11     58.0           32.6                8.0 +/-    1.07      13.3 +/-    1.07  0.040 / 0.030
G13     285.9          36.7                9.2 +/-    1.55      14.1 +/-    1.55  0.030 / 0.030
G15     311.0          12.0                6.6 +/-    1.33      17.7 +/-    1.33  0.050 / 0.100
G17     223.3          65.3               12.1 +/-    0.85      13.1 +/-    0.85  0.050 / 0.090
G19     219.3          37.4               11.8 +/-    1.73      17.9 +/-    1.73  0.050 / 0.090
G28     6.9            60.5                8.7 +/-    0.44       9.8 +/-    0.44  0.060 / 0.080
G30     123.5          70.8               10.0 +/-    0.45      10.5 +/-    0.45  0.040 / 0.050