PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-21:28:10
G02     211.7          54.4               12.3 +/-    0.65      14.8 +/-    0.65  0.090 / 0.110
G06     75.6           77.6               10.2 +/-    0.42      10.4 +/-    0.42  0.070 / 0.100
G12     316.9          32.0                9.8 +/-    1.08      16.4 +/-    1.08  0.060 / 0.090
G17     51.1           38.0                9.7 +/-    0.76      14.6 +/-    0.76  0.050 / 0.080
G19     29.8           54.3               10.8 +/-    0.78      13.0 +/-    0.78  0.040 / 0.070
G24     272.7          42.5                8.8 +/-    0.87      12.3 +/-    0.87  0.040 / 0.080
G28     118.7          17.8               11.9 +/-    1.01      27.6 +/-    1.01  0.140 / 0.440