PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/28-18:27:50
G02     243.8          75.0               10.4 +/-    0.58      10.7 +/-    0.58  0.060 / 0.180
G05     171.3          17.4               12.1 +/-    0.98      28.3 +/-    0.98  0.080 / 0.170
G06     40.7           54.8               10.7 +/-    0.92      12.7 +/-    0.92  0.030 / 0.040
G12     322.6          57.5                9.9 +/-    1.17      11.5 +/-    1.17  0.030 / 0.050
G17     72.4           21.0               10.9 +/-    2.20      23.4 +/-    2.20  0.120 / 0.330
G19     56.2           40.3               12.2 +/-    1.06      17.7 +/-    1.06  0.090 / 0.380
G24     242.0          33.8               13.3 +/-    1.32      21.6 +/-    1.32  0.040 / 0.040
G25     316.9          14.0               10.3 +/-    2.40      26.3 +/-    2.40  0.040 / 0.040