PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-11:57:50
G01     37.8           11.0                3.8 +/-    2.09      10.4 +/-    2.09  0.040 / 0.080
G02     200.3          10.7               -0.2 +/-   12.28      -0.6 +/-   12.28  0.040 / 0.070
G06     171.8          45.5                6.1 +/-    1.07       8.1 +/-    1.07  0.070 / 0.150
G13     231.9          18.9                5.0 +/-    1.12      11.4 +/-    1.12  0.080 / 0.160
G15     266.8          10.1                3.2 +/-    5.13       9.0 +/-    5.13  0.030 / 0.030
G17     6.2            68.0                6.3 +/-    0.66       6.8 +/-    0.66  0.030 / 0.030
G19     299.3          72.2                5.6 +/-    1.06       5.9 +/-    1.06  0.100 / 0.320
G24     314.7          22.3                0.4 +/-    3.01       0.9 +/-    3.01  0.120 / 0.320
G28     71.6           49.6                4.8 +/-    0.38       6.1 +/-    0.38  0.030 / 0.050
G30     156.3          23.5                5.2 +/-    1.59      10.6 +/-    1.59  0.040 / 0.040