PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-02:57:30
G08     317.9          13.6                7.6 +/-    1.73      19.7 +/-    1.73  0.070 / 0.050
G10     312.9          56.3                9.7 +/-    2.02      11.4 +/-    2.02  0.050 / 0.060
G14     213.7          18.5               14.1 +/-    2.07      32.3 +/-    2.07  0.030 / 0.030
G15     45.7           21.4                8.8 +/-    2.54      18.7 +/-    2.54  0.040 / 0.040
G20     345.5          64.5               15.5 +/-    0.47      16.9 +/-    0.47  0.090 / 0.110
G21     119.7          67.7               12.1 +/-    0.91      12.9 +/-    0.91  0.080 / 0.090
G24     85.2           29.1                8.9 +/-    1.44      15.9 +/-    1.44  0.250 / 0.400
G27     288.8          37.2               13.0 +/-    1.93      19.8 +/-    1.93  0.160 / 0.380
G32     215.3          43.7               13.7 +/-    1.27      18.8 +/-    1.27  0.080 / 0.320