PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-16:43:00
G01     48.0           23.8                7.4 +/-    1.37      14.9 +/-    1.37  0.050 / 0.060
G06     177.1          26.1               12.1 +/-    1.61      23.0 +/-    1.61  0.050 / 0.060
G11     44.1           13.7                7.7 +/-    1.40      19.8 +/-    1.40  0.120 / 0.390
G13     247.5          30.1               11.6 +/-    1.20      20.3 +/-    1.20  0.130 / 0.240
G15     281.5          15.4                9.3 +/-    2.15      22.9 +/-    2.15  0.030 / 0.030
G17     312.4          78.2               10.7 +/-    0.39      10.9 +/-    0.39  0.030 / 0.030
G19     249.4          62.5               11.1 +/-    0.76      12.3 +/-    0.76  0.120 / 0.180
G28     47.1           55.7                9.5 +/-    0.40      11.2 +/-    0.40  0.100 / 0.170
G30     149.9          37.3               10.8 +/-    0.94      16.5 +/-    0.94  0.050 / 0.050