PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-07:58:10
G01     85.8           31.5                7.1 +/-    0.44      12.0 +/-    0.44  0.030 / 0.030
G07     127.1          42.7                8.1 +/-    1.13      11.3 +/-    1.13  0.030 / 0.030
G11     67.7           41.3                5.6 +/-    0.94       8.0 +/-    0.94  0.040 / 0.070
G13     291.2          37.9                6.3 +/-    1.67       9.4 +/-    1.67  0.030 / 0.060
G15     313.4          11.2                0.6 +/-   10.19       1.6 +/-   10.19  0.040 / 0.040
G17     214.8          54.3                7.3 +/-    0.96       8.8 +/-    0.96  0.030 / 0.050
G19     214.3          31.0                5.7 +/-    1.97       9.8 +/-    1.97  0.070 / 0.120
G28     336.1          61.2                3.8 +/-    0.65       4.3 +/-    0.65  0.050 / 0.110
G30     106.8          77.4                7.1 +/-    0.67       7.2 +/-    0.67  0.040 / 0.060