PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-07:12:50
G01     273.0          41.2                4.0 +/-    1.41       5.7 +/-    1.41  0.110 / 0.120
G03     315.1          25.6                1.2 +/-    3.53       2.3 +/-    3.53  0.110 / 0.190
G10     128.5          19.6                3.9 +/-    1.43       8.6 +/-    1.43  0.050 / 0.070
G11     249.3          22.1                4.8 +/-    2.36      10.0 +/-    2.36  0.060 / 0.060
G14     43.1           49.8                3.0 +/-    0.32       3.8 +/-    0.32  0.040 / 0.080
G22     314.5          51.2                2.2 +/-    1.46       2.7 +/-    1.46  0.040 / 0.070
G25     50.3           15.0                1.9 +/-    1.38       4.8 +/-    1.38  0.060 / 0.080
G26     150.0          22.8                5.0 +/-    1.89      10.3 +/-    1.89  0.050 / 0.090
G31     59.7           75.6                4.6 +/-    1.27       4.7 +/-    1.27  0.030 / 0.030
G32     62.1           34.3                3.0 +/-    0.92       4.8 +/-    0.92  0.020 / 0.030