PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-17:12:50
G01     114.1          21.5               13.1 +/-    0.82      27.8 +/-    0.82  0.070 / 0.100
G07     93.3           63.7               11.3 +/-    0.74      12.5 +/-    0.74  0.060 / 0.100
G08     43.5           28.1                9.4 +/-    1.48      17.2 +/-    1.48  0.040 / 0.050
G09     176.0          20.2               11.3 +/-    0.68      24.8 +/-    0.68  0.040 / 0.050
G11     99.9           41.9               12.1 +/-    0.40      17.1 +/-    0.40  0.030 / 0.030
G13     314.7          23.7               11.1 +/-    1.42      22.5 +/-    1.42  0.030 / 0.040
G17     204.0          28.2               12.8 +/-    1.29      23.4 +/-    1.29  0.060 / 0.070
G18     88.5           22.8               10.2 +/-    1.08      20.9 +/-    1.08  0.070 / 0.060
G28     303.8          59.4               11.3 +/-    0.72      12.9 +/-    0.72  0.060 / 0.160
G30     0.1            73.5               12.2 +/-    1.08      12.7 +/-    1.08  0.060 / 0.150