PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-04:28:00
G02     331.7          81.0                3.0 +/-    0.31       3.0 +/-    0.31  0.090 / 0.090
G05     165.2          29.7                6.6 +/-    2.14      11.7 +/-    2.14  0.070 / 0.090
G06     40.2           46.2                1.7 +/-    1.24       2.3 +/-    1.24  0.030 / 0.030
G12     317.1          65.0                3.0 +/-    0.76       3.3 +/-    0.76  0.030 / 0.040
G17     81.3           16.4                4.2 +/-    1.52      10.1 +/-    1.52  0.080 / 0.170
G19     70.7           30.2                2.5 +/-    0.67       4.4 +/-    0.67  0.120 / 0.140
G24     232.8          26.2                5.8 +/-    1.49      11.0 +/-    1.49  0.060 / 0.040
G25     317.8          23.6                3.1 +/-    1.85       6.2 +/-    1.85  0.050 / 0.040