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               12.1 +/-    2.06      25.8 +/-    2.06  0.070 / 0.120
G07     93.3           63.7               12.8 +/-    0.39      14.1 +/-    0.39  0.080 / 0.170
G08     43.5           28.1                9.4 +/-    2.42      17.2 +/-    2.42  0.040 / 0.030
G09     176.0          20.2               11.9 +/-    1.62      26.2 +/-    1.62  0.030 / 0.030
G11     99.9           41.9               12.2 +/-    0.67      17.3 +/-    0.67  0.030 / 0.030
G13     314.7          23.7               11.2 +/-    1.77      22.6 +/-    1.77  0.030 / 0.020
G17     204.0          28.2               15.3 +/-    1.50      27.8 +/-    1.50  0.120 / 0.190
G18     88.5           22.8               10.4 +/-    1.57      21.5 +/-    1.57  0.110 / 0.160
G28     303.8          59.4               10.6 +/-    1.03      12.1 +/-    1.03  0.110 / 0.130
G30     0.1            73.5               12.7 +/-    0.80      13.2 +/-    0.80  0.100 / 0.170