PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/01-23:12:40
G02     59.2           33.3                7.3 +/-    0.45      11.9 +/-    0.45  0.140 / 0.550
G05     57.7           60.6                7.8 +/-    0.88       8.8 +/-    0.88  0.120 / 0.390
G12     183.0          30.7               12.2 +/-    1.69      21.0 +/-    1.69  0.030 / 0.030
G13     128.0          15.2               12.2 +/-    1.59      30.2 +/-    1.59  0.030 / 0.040
G15     165.0          11.5               11.0 +/-   12.24      29.9 +/-   12.24  0.080 / 0.120
G21     271.1          16.6               13.2 +/-    3.01      31.6 +/-    3.01  0.080 / 0.110
G25     236.6          51.9                9.8 +/-    1.93      12.1 +/-    1.93  0.050 / 0.080
G29     327.5          53.5                8.1 +/-    0.78       9.8 +/-    0.78  0.060 / 0.100