PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-19:27:30
G02     230.5          70.3               12.4 +/-    0.79      13.1 +/-    0.79  0.130 / 0.270
G05     173.4          12.3               14.2 +/-    3.01      37.5 +/-    3.01  0.070 / 0.220
G06     42.5           61.3               10.2 +/-    0.48      11.5 +/-    0.48  0.050 / 0.080
G12     322.1          50.3                9.4 +/-    0.96      11.8 +/-    0.96  0.040 / 0.060
G17     67.0           25.4                9.7 +/-    1.39      18.7 +/-    1.39  0.060 / 0.080
G19     49.9           43.8                8.9 +/-    0.53      12.2 +/-    0.53  0.070 / 0.100
G24     249.0          37.2               13.2 +/-    1.05      20.2 +/-    1.05  0.040 / 0.040