PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-15:57:40
G01     45.2           21.4                7.0 +/-    3.11      14.8 +/-    3.11  0.040 / 0.060
G06     176.1          30.2                8.6 +/-    1.17      15.0 +/-    1.17  0.040 / 0.060
G11     43.6           10.8                8.0 +/-    2.94      21.9 +/-    2.94  0.290 / 0.590
G13     243.8          27.9               10.4 +/-    1.66      19.1 +/-    1.66  0.300 / 0.360
G15     278.1          14.6                8.2 +/-    1.38      20.7 +/-    1.38  0.200 / 0.350
G17     327.0          77.0                9.9 +/-    0.44      10.1 +/-    0.44  0.310 / 0.400
G19     257.0          65.4               10.6 +/-    0.74      11.5 +/-    0.74  0.030 / 0.030
G24     318.4          12.1                0.4 +/-   25.43       1.2 +/-   25.43  0.020 / 0.030
G28     52.8           54.5               10.5 +/-    0.48      12.5 +/-    0.48  0.100 / 0.130
G30     151.5          34.2                9.2 +/-    1.00      14.8 +/-    1.00  0.110 / 0.130