PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-21:57:50
G10     263.4          36.2               12.8 +/-    0.61      19.9 +/-    0.61  0.130 / 0.270
G13     43.5           20.7                7.5 +/-    3.42      16.3 +/-    3.42  0.190 / 0.210
G15     67.3           54.8                8.5 +/-    0.56      10.1 +/-    0.56  0.220 / 0.440
G16     280.4          13.5               10.0 +/-    1.79      25.8 +/-    1.79  0.170 / 0.280
G20     262.3          21.2               13.4 +/-    0.77      28.7 +/-    0.77  0.140 / 0.250
G21     352.1          69.0                9.1 +/-    0.82       9.6 +/-    0.82  0.120 / 0.310
G24     121.4          12.4               12.1 +/-    2.48      32.1 +/-    2.48  0.050 / 0.080
G27     320.2          15.8                9.3 +/-    1.10      22.7 +/-    1.10  0.040 / 0.120
G29     168.0          36.2               11.4 +/-    1.03      17.8 +/-    1.03  0.050 / 0.050