PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-01:57:20
G02     203.1          36.0                8.0 +/-    0.47      12.5 +/-    0.47  0.100 / 0.220
G06     170.7          65.5               30.9 +/-    0.97      33.6 +/-    0.97  0.130 / 0.230
G12     306.7          13.6                4.7 +/-    2.23      12.2 +/-    2.23  0.050 / 0.110
G17     38.1           47.1               -0.4 +/-    0.46      -0.5 +/-    0.46  0.050 / 0.110
G19     0.8            65.2                4.6 +/-    0.76       5.0 +/-    0.76  0.070 / 0.070
G24     295.0          39.9                5.7 +/-    1.21       8.2 +/-    1.21  0.070 / 0.090
G28     101.1          33.9                4.7 +/-    0.89       7.6 +/-    0.89  0.040 / 0.040