PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-11:28:10
G01     76.5           33.3                5.4 +/-    0.75       8.9 +/-    0.75  0.050 / 0.070
G07     134.5          34.8                7.3 +/-    0.73      11.7 +/-    0.73  0.040 / 0.070
G11     56.4           33.0                3.3 +/-    0.56       5.4 +/-    0.56  0.030 / 0.030
G13     280.2          38.1                5.2 +/-    1.28       7.8 +/-    1.28  0.030 / 0.030
G15     311.2          10.9                1.9 +/-    9.23       5.2 +/-    9.23  0.080 / 0.120
G17     225.9          66.2                7.2 +/-    0.79       7.8 +/-    0.79  0.090 / 0.110
G18     52.0           19.6                3.7 +/-    1.14       8.2 +/-    1.14  0.090 / 0.230
G19     220.8          33.0                4.9 +/-    2.80       8.1 +/-    2.80  0.080 / 0.180
G28     9.2            60.6                3.9 +/-    0.50       4.5 +/-    0.50  0.070 / 0.130
G30     129.4          68.1                7.2 +/-    0.38       7.7 +/-    0.38  0.050 / 0.120