PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-13:57:40
G01     56.6           29.1                5.3 +/-    2.17       9.4 +/-    2.17  0.040 / 0.040
G07     143.7          19.0                6.7 +/-    1.77      15.0 +/-    1.77  0.040 / 0.050
G11     46.4           20.0                5.6 +/-    3.26      12.3 +/-    3.26  0.120 / 0.260
G13     258.1          34.0                8.3 +/-    1.44      13.4 +/-    1.44  0.090 / 0.220
G15     293.9          15.1                4.1 +/-    1.79      10.1 +/-    1.79  0.060 / 0.090
G17     279.9          79.1                6.7 +/-    0.70       6.9 +/-    0.70  0.060 / 0.090
G18     40.0           10.2                5.0 +/-    3.76      13.9 +/-    3.76  0.070 / 0.110
G19     235.3          50.1                6.8 +/-    2.11       8.6 +/-    2.11  0.120 / 0.140
G28     40.9           55.7                5.8 +/-    0.76       6.8 +/-    0.76  0.150 / 0.390
G30     146.3          50.4                7.8 +/-    0.70       9.7 +/-    0.70  0.110 / 0.380