PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-01:58:00
G08     319.5          12.2                6.4 +/-    3.39      17.0 +/-    3.39  0.060 / 0.070
G10     307.9          55.0                8.5 +/-    0.83      10.2 +/-    0.83  0.060 / 0.070
G14     212.5          16.1               15.1 +/-    2.47      36.5 +/-    2.47  0.120 / 0.230
G15     45.8           24.5                6.3 +/-    0.58      12.4 +/-    0.58  0.080 / 0.280
G20     322.5          60.5                9.9 +/-    0.64      11.1 +/-    0.64  0.090 / 0.140
G21     113.4          70.3               10.3 +/-    1.25      10.9 +/-    1.25  0.100 / 0.120
G24     88.5           28.4                8.5 +/-    1.09      15.4 +/-    1.09  0.030 / 0.060
G27     292.7          36.5                8.9 +/-    0.88      13.8 +/-    0.88  0.040 / 0.050
G32     213.5          40.6               10.7 +/-    0.95      15.4 +/-    0.95  0.040 / 0.040