PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/07-11:27:40
G01     50.9           25.8                4.8 +/-    1.52       9.3 +/-    1.52  0.080 / 0.180
G06     179.2          22.9               10.2 +/-    9.16      21.0 +/-    9.16  0.140 / 0.240
G07     145.7          11.7                3.3 +/-    4.18       8.8 +/-    4.18  0.040 / 0.050
G11     44.6           14.4                2.3 +/-    2.57       5.7 +/-    2.57  0.030 / 0.070
G13     253.7          30.8               13.0 +/-    8.84      22.4 +/-    8.84  0.210 / 0.390
G15     285.4          15.9                5.2 +/-    2.58      12.6 +/-    2.58  0.110 / 0.310
G17     322.4          79.0                4.7 +/-    1.56       4.7 +/-    1.56  0.070 / 0.140
G19     246.7          61.1               15.8 +/-    9.65      17.8 +/-    9.65  0.110 / 0.160
G28     51.8           52.9                2.7 +/-    0.74       3.3 +/-    0.74  0.020 / 0.030
G30     149.1          43.2                6.5 +/-    2.53       9.0 +/-    2.53  0.040 / 0.030