PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/31-03:58:10
G01     319.4          17.1                5.0 +/-    2.39      11.7 +/-    2.39  0.050 / 0.050
G08     257.5          13.6                9.9 +/-    1.16      25.3 +/-    1.16  0.040 / 0.060
G10     78.5           53.6                6.2 +/-    0.68       7.5 +/-    0.68  0.070 / 0.280
G11     303.5          23.0                5.1 +/-    2.30      10.5 +/-    2.30  0.090 / 0.220
G14     289.4          69.3                7.4 +/-    0.80       7.9 +/-    0.80  0.050 / 0.040
G18     305.5          39.7                6.8 +/-    1.44       9.9 +/-    1.44  0.050 / 0.040
G20     92.9           51.4                9.7 +/-    1.20      12.0 +/-    1.20  0.110 / 0.260
G22     300.3          9.9                -2.2 +/-    2.04      -6.2 +/-    2.04  0.120 / 0.230
G31     174.2          42.9                9.8 +/-    0.85      13.6 +/-    0.85  0.160 / 0.280
G32     10.1           66.9                5.1 +/-    1.37       5.5 +/-    1.37  0.170 / 0.270