PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-13:27:50
G01     52.0           26.7                4.4 +/-    2.01       8.2 +/-    2.01  0.040 / 0.050
G06     176.5          24.7                7.1 +/-    1.80      14.0 +/-    1.80  0.050 / 0.060
G07     145.5          14.4                6.3 +/-    2.70      15.8 +/-    2.70  0.270 / 0.450
G11     44.8           15.7                6.1 +/-    2.20      14.9 +/-    2.20  0.130 / 0.270
G13     252.5          31.7                4.6 +/-    2.49       7.7 +/-    2.49  0.080 / 0.170
G15     289.6          14.8                2.3 +/-    1.41       5.8 +/-    1.41  0.180 / 0.130
G17     312.1          79.4                6.0 +/-    0.66       6.1 +/-    0.66  0.060 / 0.140
G19     241.2          54.2                7.1 +/-    2.55       8.6 +/-    2.55  0.090 / 0.110
G28     48.6           53.9                5.2 +/-    0.92       6.3 +/-    0.92  0.110 / 0.130
G30     149.2          45.6                5.8 +/-    1.61       7.7 +/-    1.61  0.090 / 0.160