PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-12:12:40
G02     201.1          25.8                6.4 +/-    1.47      12.2 +/-    1.47  0.110 / 0.120
G06     171.3          58.2                8.2 +/-    1.41       9.5 +/-    1.41  0.080 / 0.160
G17     30.3           53.9                4.3 +/-    1.02       5.1 +/-    1.02  0.050 / 0.120
G19     345.6          69.2                4.6 +/-    0.83       4.9 +/-    0.83  0.050 / 0.120
G24     307.5          31.9                5.1 +/-    1.07       8.7 +/-    1.07  0.040 / 0.050
G28     94.4           36.1                4.7 +/-    0.66       7.3 +/-    0.66  0.040 / 0.060
G30     157.8          10.3                6.2 +/-    3.27      17.1 +/-    3.27  0.040 / 0.040