PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-09:12:40
G01     41.1           16.2                3.9 +/-    1.43       9.5 +/-    1.43  0.040 / 0.080
G06     178.0          36.4               10.6 +/-    1.52      16.4 +/-    1.52  0.040 / 0.070
G13     239.1          22.0                4.9 +/-    1.56      10.2 +/-    1.56  0.150 / 0.150
G15     270.6          12.5                5.1 +/-    2.55      13.4 +/-    2.55  0.160 / 0.170
G17     6.1            69.3                7.0 +/-    0.73       7.4 +/-    0.73  0.130 / 0.250
G19     281.9          70.4                7.4 +/-    0.75       7.8 +/-    0.75  0.120 / 0.270
G24     317.1          18.1                4.1 +/-    1.79       9.5 +/-    1.79  0.030 / 0.030
G28     72.6           46.2                5.9 +/-    1.18       7.8 +/-    1.18  0.030 / 0.040
G30     154.4          26.9                9.0 +/-    1.45      16.7 +/-    1.45  0.050 / 0.090