PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-13:28:00
G01     319.3          17.2                4.5 +/-    2.13      10.7 +/-    2.13  0.030 / 0.040
G08     261.8          13.5                3.3 +/-    1.91       8.5 +/-    1.91  0.040 / 0.040
G10     78.2           54.0                4.7 +/-    0.58       5.6 +/-    0.58  0.300 / 0.490
G11     306.0          20.7                4.3 +/-    1.14       9.3 +/-    1.14  0.410 / 0.370
G14     288.7          68.9                5.5 +/-    0.56       5.9 +/-    0.56  0.060 / 0.040
G22     300.9          12.4                3.3 +/-    1.90       8.8 +/-    1.90  0.060 / 0.060
G31     175.1          42.3                7.7 +/-    0.85      10.9 +/-    0.85  0.170 / 0.230
G32     8.6            67.3                4.0 +/-    0.39       4.3 +/-    0.39  0.170 / 0.230