PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/01-00:58:10
G01     67.7           32.5                5.7 +/-    1.07       9.5 +/-    1.07  0.030 / 0.040
G07     139.0          28.9                7.9 +/-    0.97      14.1 +/-    0.97  0.030 / 0.050
G11     53.8           31.4                5.3 +/-    1.48       9.0 +/-    1.48  0.050 / 0.060
G13     271.9          36.9                6.5 +/-    3.04      10.0 +/-    3.04  0.040 / 0.070
G15     299.5          16.2                4.6 +/-    2.28      11.0 +/-    2.28  0.040 / 0.030
G17     237.7          69.2                6.7 +/-    0.55       7.1 +/-    0.55  0.030 / 0.030
G19     226.5          44.7                8.0 +/-    2.16      10.8 +/-    2.16  0.040 / 0.090
G28     25.4           58.4                7.9 +/-    1.91       9.1 +/-    1.91  0.070 / 0.100
G30     137.7          55.1                8.6 +/-    0.50      10.3 +/-    0.50  0.070 / 0.090