PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-00:27:40
G01     118.4          18.5                8.0 +/-    1.36      18.2 +/-    1.36  0.070 / 0.200
G07     82.2           66.3                8.1 +/-    0.50       8.8 +/-    0.50  0.060 / 0.180
G08     45.2           32.6                6.0 +/-    0.58      10.0 +/-    0.58  0.040 / 0.060
G09     177.6          26.1                8.9 +/-    1.14      17.0 +/-    1.14  0.040 / 0.060
G11     109.0          40.1                9.3 +/-    0.65      13.5 +/-    0.65  0.040 / 0.070
G13     317.7          19.3                6.3 +/-    1.59      14.1 +/-    1.59  0.050 / 0.090
G17     202.4          24.3                9.0 +/-    2.17      17.9 +/-    2.17  0.020 / 0.040
G28     295.5          58.1                7.8 +/-    0.83       9.0 +/-    0.83  0.030 / 0.040
G30     0.5            72.0                7.0 +/-    0.88       7.4 +/-    0.88  0.050 / 0.070