PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-19:42:50
G02     3.7            72.8                7.4 +/-    0.44       7.7 +/-    0.44  0.060 / 0.110
G05     159.9          41.8               10.0 +/-    0.71      14.2 +/-    0.71  0.070 / 0.110
G06     43.7           32.8                6.0 +/-    1.09      10.0 +/-    1.09  0.030 / 0.040
G12     293.5          76.7                7.6 +/-    1.03       7.8 +/-    1.03  0.030 / 0.040
G19     82.5           21.0                7.9 +/-    2.89      17.0 +/-    2.89  0.220 / 0.170
G24     222.7          17.0               19.1 +/-    2.95      45.2 +/-    2.95  0.110 / 0.170
G25     315.0          35.5                7.0 +/-    0.88      10.9 +/-    0.88  0.110 / 0.210
G29     292.1          14.6                9.6 +/-    1.79      24.2 +/-    1.79  0.080 / 0.180