PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-07:57:30
G01     84.8           32.7                3.0 +/-    1.81       4.9 +/-    1.81  0.030 / 0.030
G07     129.4          40.5                5.3 +/-    0.44       7.6 +/-    0.44  0.030 / 0.040
G11     63.8           37.0                3.9 +/-    0.56       6.0 +/-    0.56  0.050 / 0.060
G13     291.1          36.2                5.0 +/-    1.71       7.8 +/-    1.71  0.040 / 0.060
G15     312.2          12.0                2.2 +/-    3.17       5.8 +/-    3.17  0.070 / 0.040
G17     218.2          59.9                6.0 +/-    1.14       6.8 +/-    1.14  0.080 / 0.040
G19     216.7          32.7                6.0 +/-    2.12      10.0 +/-    2.12  0.060 / 0.070
G28     359.2          61.2                3.0 +/-    0.70       3.4 +/-    0.70  0.060 / 0.090
G30     116.1          72.2                5.1 +/-    0.80       5.4 +/-    0.80  0.150 / 0.210