PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-14:58:00
G01     40.8           15.8                9.2 +/-    2.44      22.4 +/-    2.44  0.060 / 0.120
G06     172.6          41.8               12.5 +/-    1.04      17.7 +/-    1.04  0.070 / 0.130
G13     236.7          21.5               11.0 +/-    2.70      23.4 +/-    2.70  0.120 / 0.280
G15     273.5          11.5               10.0 +/-    2.01      27.0 +/-    2.01  0.140 / 0.240
G17     6.0            69.1                9.8 +/-    0.34      10.5 +/-    0.34  0.120 / 0.300
G19     272.7          66.6               10.3 +/-    0.84      11.1 +/-    0.84  0.250 / 0.470
G24     315.7          21.3                8.0 +/-    3.05      16.9 +/-    3.05  0.100 / 0.320
G28     72.4           46.6               10.5 +/-    0.95      13.9 +/-    0.95  0.140 / 0.440
G30     155.3          28.2               11.3 +/-    1.27      20.6 +/-    1.27  0.070 / 0.070