PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-14:12:50
G01     114.0          21.4               12.8 +/-    1.55      27.2 +/-    1.55  0.030 / 0.030
G07     93.7           63.4               10.6 +/-    0.97      11.7 +/-    0.97  0.030 / 0.040
G08     43.0           26.2                9.2 +/-    1.13      17.5 +/-    1.13  0.100 / 0.140
G09     175.1          19.1               11.8 +/-    1.85      26.6 +/-    1.85  0.120 / 0.200
G11     98.5           41.7               11.3 +/-    0.69      16.0 +/-    0.69  0.060 / 0.050
G13     314.6          23.9                8.2 +/-    1.84      16.5 +/-    1.84  0.060 / 0.060
G17     203.3          30.2               13.0 +/-    2.58      22.7 +/-    2.58  0.040 / 0.040
G18     88.0           22.7                8.5 +/-    1.92      17.5 +/-    1.92  0.030 / 0.050
G28     303.3          59.3               10.5 +/-    1.24      12.1 +/-    1.24  0.060 / 0.110
G30     356.3          72.8               10.3 +/-    0.84      10.7 +/-    0.84  0.050 / 0.090