PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-11:42:40
G01     39.0           13.4                1.9 +/-    0.87       4.8 +/-    0.87  0.040 / 0.070
G06     172.7          42.2                6.5 +/-    1.42       9.2 +/-    1.42  0.040 / 0.080
G13     234.3          21.0                5.3 +/-    1.81      11.4 +/-    1.81  0.130 / 0.270
G15     269.4          11.2                4.3 +/-    2.59      11.6 +/-    2.59  0.160 / 0.350
G17     0.5            70.3                5.4 +/-    0.49       5.7 +/-    0.49  0.040 / 0.030
G19     288.2          71.6                4.6 +/-    0.52       4.9 +/-    0.52  0.040 / 0.030
G24     315.9          19.9                3.2 +/-    0.69       7.0 +/-    0.69  0.110 / 0.220
G28     67.2           51.1                4.4 +/-    0.86       5.5 +/-    0.86  0.100 / 0.220
G30     155.7          26.6                6.2 +/-    0.69      11.7 +/-    0.69  0.030 / 0.040