PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-23:43:10
G01     319.6          16.8                5.9 +/-    1.25      14.1 +/-    1.25  0.210 / 0.300
G08     257.0          13.9                8.4 +/-    1.27      21.5 +/-    1.27  0.230 / 0.420
G10     78.0           53.5                7.3 +/-    0.65       8.9 +/-    0.65  0.040 / 0.050
G11     303.5          23.1                5.9 +/-    2.63      12.1 +/-    2.63  0.040 / 0.050
G14     291.4          70.1                7.1 +/-    0.76       7.5 +/-    0.76  0.160 / 0.270
G18     305.1          40.5                5.5 +/-    1.08       7.9 +/-    1.08  0.130 / 0.190
G20     104.2          30.0                9.4 +/-    0.93      16.4 +/-    0.93  0.080 / 0.260
G27     226.0          9.9                11.8 +/-    4.19      32.9 +/-    4.19  0.080 / 0.230
G31     176.2          40.7               10.3 +/-    1.34      14.8 +/-    1.34  0.130 / 0.270
G32     7.1            67.9                6.9 +/-    0.79       7.4 +/-    0.79  0.130 / 0.200