PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-14:28:10
G02     211.4          46.6               11.8 +/-    0.80      15.6 +/-    0.80  0.100 / 0.110
G06     90.3           78.7               11.1 +/-    0.23      11.3 +/-    0.23  0.110 / 0.100
G12     316.4          31.7                8.0 +/-    1.17      13.6 +/-    1.17  0.090 / 0.060
G17     51.0           36.8                9.0 +/-    1.71      13.8 +/-    1.71  0.070 / 0.060
G19     21.0           58.1               10.5 +/-    1.55      12.2 +/-    1.55  0.040 / 0.020
G24     274.4          43.3                8.6 +/-    2.06      11.8 +/-    2.06  0.040 / 0.030
G28     116.1          20.8               10.5 +/-    0.82      22.7 +/-    0.82  0.070 / 0.040