PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-17:28:10
G01     121.0          15.7               12.3 +/-    2.63      30.1 +/-    2.63  0.080 / 0.100
G07     84.2           62.7                9.8 +/-    0.47      10.9 +/-    0.47  0.080 / 0.070
G08     46.2           33.8                9.6 +/-    1.26      15.5 +/-    1.26  0.030 / 0.040
G09     178.1          30.4               11.1 +/-    1.59      19.3 +/-    1.59  0.030 / 0.040
G11     109.1          39.4               10.6 +/-    1.19      15.6 +/-    1.19  0.030 / 0.030
G13     318.6          18.0               10.2 +/-    2.74      23.5 +/-    2.74  0.030 / 0.030
G17     200.5          21.5               11.1 +/-    1.93      23.5 +/-    1.93  0.100 / 0.200
G18     95.2           19.6               10.1 +/-    1.71      22.5 +/-    1.71  0.110 / 0.210
G28     281.0          52.8               10.1 +/-    2.98      12.3 +/-    2.98  0.260 / 0.310
G30     346.3          68.1                9.7 +/-    0.62      10.4 +/-    0.62  0.170 / 0.260