PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-16:28:10
G02     210.0          47.2               13.2 +/-    0.38      17.2 +/-    0.38  0.080 / 0.050
G06     93.8           78.4               12.2 +/-    0.63      12.4 +/-    0.63  0.060 / 0.070
G12     316.1          31.3               10.8 +/-    1.72      18.5 +/-    1.72  0.060 / 0.100
G17     49.7           37.9                9.4 +/-    1.28      14.2 +/-    1.28  0.060 / 0.100
G19     21.0           58.2               10.6 +/-    1.20      12.2 +/-    1.20  0.040 / 0.020
G24     277.4          43.0               12.5 +/-    0.81      17.3 +/-    0.81  0.030 / 0.020
G28     115.1          21.3               11.1 +/-    1.43      23.6 +/-    1.43  0.050 / 0.030