PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/07-18:57:30
G02     250.6          77.2               10.7 +/-    0.53      10.9 +/-    0.53  0.120 / 0.350
G05     170.4          18.7               13.3 +/-    1.66      30.3 +/-    1.66  0.110 / 0.360
G06     39.8           55.6               10.4 +/-    0.52      12.3 +/-    0.52  0.030 / 0.030
G12     320.9          53.0               10.6 +/-    0.79      13.0 +/-    0.79  0.030 / 0.030
G17     71.7           22.5                9.5 +/-    0.72      19.7 +/-    0.72  0.090 / 0.110
G19     60.4           35.6                9.0 +/-    1.26      14.1 +/-    1.26  0.100 / 0.140
G24     242.6          33.0               11.6 +/-    2.09      19.2 +/-    2.09  0.040 / 0.050
G25     316.7          13.9                9.6 +/-    3.76      24.4 +/-    3.76  0.060 / 0.060