PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/28-02:27:40
G08     304.4          21.1                4.9 +/-    2.79      10.5 +/-    2.79  0.080 / 0.130
G10     342.9          61.4                7.4 +/-    1.06       8.3 +/-    1.06  0.070 / 0.100
G14     221.3          33.9               12.0 +/-    2.59      19.5 +/-    2.59  0.090 / 0.140
G20     359.5          65.2                8.1 +/-    1.00       8.8 +/-    1.00  0.080 / 0.160
G21     139.2          52.9               10.5 +/-    0.55      12.8 +/-    0.55  0.040 / 0.040
G24     66.5           28.6                5.7 +/-    1.59      10.3 +/-    1.59  0.040 / 0.030
G27     268.1          36.2                9.5 +/-    2.09      14.8 +/-    2.09  0.080 / 0.110
G32     228.9          59.5               10.5 +/-    0.91      12.0 +/-    0.91  0.090 / 0.110