PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-13:58:10
G01     39.0           13.3                4.8 +/-    0.85      12.5 +/-    0.85  0.040 / 0.080
G06     172.9          42.4                9.4 +/-    0.92      13.1 +/-    0.92  0.040 / 0.080
G13     234.1          20.7                8.2 +/-    1.90      17.8 +/-    1.90  0.070 / 0.140
G15     268.8          11.1                5.6 +/-    4.29      15.4 +/-    4.29  0.060 / 0.150
G17     355.5          71.1                7.1 +/-    0.87       7.5 +/-    0.87  0.130 / 0.330
G19     288.9          71.5                6.9 +/-    0.59       7.3 +/-    0.59  0.180 / 0.320
G24     315.7          20.6                5.1 +/-    2.57      11.1 +/-    2.57  0.100 / 0.210
G28     68.5           50.4                6.2 +/-    0.67       7.8 +/-    0.67  0.100 / 0.210
G30     155.3          24.9                8.7 +/-    2.03      17.0 +/-    2.03  0.050 / 0.070