PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-03:57:40
G10     257.9          32.2               10.4 +/-    2.59      17.4 +/-    2.59  0.200 / 0.300
G13     47.1           25.0                8.8 +/-    2.43      17.2 +/-    2.43  0.160 / 0.280
G15     71.9           55.0                7.8 +/-    0.53       9.3 +/-    0.53  0.040 / 0.040
G16     286.7          14.6                6.7 +/-    1.78      16.8 +/-    1.78  0.040 / 0.030
G20     296.4          63.8                8.8 +/-    0.70       9.7 +/-    0.70  0.550 / 0.330
G21     343.9          65.5                9.2 +/-    0.38      10.0 +/-    0.38  0.180 / 0.200
G26     259.0          12.1                9.1 +/-   16.49      24.2 +/-   16.49  0.090 / 0.150
G27     321.7          11.8               -2.7 +/-   25.11      -7.3 +/-   25.11  0.140 / 0.170
G29     167.1          41.6                9.9 +/-    1.06      14.1 +/-    1.06  0.040 / 0.030