PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-16:12:50
G01     66.7           32.3                8.7 +/-    1.61      14.6 +/-    1.61  0.080 / 0.130
G07     139.4          27.9               11.0 +/-    1.00      20.1 +/-    1.00  0.060 / 0.120
G11     51.2           28.0                7.8 +/-    1.60      14.3 +/-    1.60  0.030 / 0.040
G13     269.8          37.0               11.0 +/-    2.43      16.9 +/-    2.43  0.030 / 0.030
G15     301.4          14.8                5.3 +/-    1.97      13.4 +/-    1.97  0.250 / 0.320
G17     240.3          71.5               11.4 +/-    0.54      11.9 +/-    0.54  0.210 / 0.300
G18     46.3           16.3                7.6 +/-    1.91      18.4 +/-    1.91  0.070 / 0.080
G19     226.7          42.5               11.5 +/-    2.07      16.1 +/-    2.07  0.050 / 0.070
G28     25.6           58.5                8.7 +/-    1.58      10.1 +/-    1.58  0.050 / 0.090
G30     139.1          59.0               11.6 +/-    0.34      13.3 +/-    0.34  0.070 / 0.110