PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-02:27:30
G08     314.1          16.5                8.5 +/-    2.10      20.3 +/-    2.10  0.060 / 0.090
G10     321.5          58.2                8.6 +/-    0.72      10.0 +/-    0.72  0.050 / 0.080
G14     215.6          23.4               16.8 +/-    3.60      34.2 +/-    3.60  0.100 / 0.290
G15     46.0           17.5                4.9 +/-    0.41      11.5 +/-    0.41  0.100 / 0.300
G20     342.6          63.8                9.7 +/-    0.58      10.7 +/-    0.58  0.050 / 0.040
G21     127.5          63.4               10.2 +/-    0.57      11.3 +/-    0.57  0.040 / 0.040
G24     79.3           29.6                9.0 +/-    1.00      15.9 +/-    1.00  0.070 / 0.080
G27     282.5          37.7               10.8 +/-    1.31      16.4 +/-    1.31  0.070 / 0.130
G32     218.6          48.6               13.4 +/-    2.30      17.2 +/-    2.30  0.040 / 0.050