PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-01:27:50
G02     204.0          39.2                9.1 +/-    1.83      13.4 +/-    1.83  0.070 / 0.100
G06     166.7          69.4                7.9 +/-    0.35       8.4 +/-    0.35  0.160 / 0.090
G12     308.4          15.8                2.9 +/-    2.51       7.0 +/-    2.51  0.050 / 0.040
G17     40.6           45.0                6.6 +/-    1.55       8.9 +/-    1.55  0.040 / 0.030
G19     7.5            63.3                6.5 +/-    0.57       7.1 +/-    0.57  0.210 / 0.350
G24     291.5          41.0                5.4 +/-   12.59       7.8 +/-   12.59  0.160 / 0.250
G28     104.0          32.0                8.1 +/-    1.04      13.6 +/-    1.04  0.060 / 0.110