PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-14:27:50
G01     50.8           25.8                7.3 +/-    3.00      14.1 +/-    3.00  0.040 / 0.050
G06     177.4          23.1                9.8 +/-    1.76      20.0 +/-    1.76  0.030 / 0.050
G07     144.8          11.2               10.7 +/-    2.47      29.1 +/-    2.47  0.130 / 0.260
G11     45.0           17.3                6.3 +/-    2.54      14.9 +/-    2.54  0.110 / 0.280
G13     251.2          32.2               10.3 +/-    2.42      17.2 +/-    2.42  0.030 / 0.020
G15     285.5          15.8                8.8 +/-    1.87      21.4 +/-    1.87  0.030 / 0.030
G17     285.4          77.6                9.7 +/-    0.62       9.9 +/-    0.62  0.050 / 0.050
G19     243.3          59.9                9.3 +/-    1.06      10.5 +/-    1.06  0.040 / 0.040
G28     40.1           57.2                8.1 +/-    1.27       9.4 +/-    1.27  0.120 / 0.190
G30     148.7          42.7               10.0 +/-    1.14      14.0 +/-    1.14  0.110 / 0.180