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                7.8 +/-    3.88      20.9 +/-    3.88  0.060 / 0.090
G10     307.9          55.0                8.5 +/-    1.44      10.1 +/-    1.44  0.070 / 0.070
G14     212.5          16.1               14.8 +/-    3.36      35.8 +/-    3.36  0.030 / 0.030
G15     45.8           24.5                7.2 +/-    2.85      14.3 +/-    2.85  0.030 / 0.030
G20     322.5          60.5                8.9 +/-    0.61      10.1 +/-    0.61  0.310 / 0.320
G21     113.4          70.3                9.4 +/-    0.96       9.9 +/-    0.96  0.090 / 0.260
G24     88.5           28.4                9.1 +/-    0.88      16.5 +/-    0.88  0.100 / 0.100
G27     292.7          36.5                7.8 +/-    2.17      12.0 +/-    2.17  0.100 / 0.120
G32     213.5          40.6               11.4 +/-    1.16      16.4 +/-    1.16  0.140 / 0.250