PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-10:57:40
G01     102.3          27.9                4.8 +/-    1.44       8.8 +/-    1.44  0.030 / 0.030
G07     114.0          54.0                6.6 +/-    0.76       7.9 +/-    0.76  0.030 / 0.030
G08     41.5           14.8                3.0 +/-    2.14       7.5 +/-    2.14  0.060 / 0.130
G11     80.9           42.2                5.8 +/-    0.98       8.2 +/-    0.98  0.060 / 0.110
G13     305.4          31.7                4.2 +/-    1.17       7.0 +/-    1.17  0.060 / 0.130
G17     207.5          44.0                6.7 +/-    0.67       9.1 +/-    0.67  0.070 / 0.120
G18     74.0           24.3                5.5 +/-    1.37      10.9 +/-    1.37  0.040 / 0.030
G19     211.0          13.3                3.0 +/-    2.32       7.9 +/-    2.32  0.040 / 0.040
G28     325.7          61.4                4.7 +/-    0.48       5.2 +/-    0.48  0.140 / 0.160
G30     39.4           80.0                5.9 +/-    0.55       6.0 +/-    0.55  0.180 / 0.220