PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-11:57:40
G01     320.3          14.1                3.3 +/-    1.97       8.4 +/-    1.97  0.050 / 0.050
G08     266.2          15.1                6.7 +/-    1.51      16.7 +/-    1.51  0.040 / 0.060
G10     72.2           55.8                6.3 +/-    0.41       7.5 +/-    0.41  0.030 / 0.030
G11     308.5          19.2                5.1 +/-    1.12      11.5 +/-    1.12  0.030 / 0.030
G14     277.4          66.9                6.2 +/-    0.64       6.6 +/-    0.64  0.130 / 0.360
G18     308.9          36.0                5.5 +/-    1.59       8.6 +/-    1.59  0.140 / 0.340
G22     299.3          10.8               -0.2 +/-    6.66      -0.6 +/-    6.66  0.110 / 0.320
G27     226.5          11.4                3.8 +/-    2.28      10.4 +/-    2.28  0.160 / 0.320
G31     175.7          38.6                8.5 +/-    1.20      12.7 +/-    1.20  0.130 / 0.450
G32     1.6            69.7                6.0 +/-    0.56       6.4 +/-    0.56  0.120 / 0.430