PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-09:58:00
G03     195.3          28.0                4.3 +/-    2.18       7.8 +/-    2.18  0.040 / 0.030
G07     286.7          36.7                5.4 +/-    1.21       8.2 +/-    1.21  0.030 / 0.030
G08     143.1          24.3                5.7 +/-    2.43      11.3 +/-    2.43  0.190 / 0.330
G09     322.1          60.2                4.6 +/-    1.37       5.2 +/-    1.37  0.140 / 0.360
G16     44.9           45.8                3.4 +/-    0.58       4.6 +/-    0.58  0.080 / 0.080
G22     178.3          11.2                2.6 +/-    3.49       7.1 +/-    3.49  0.040 / 0.140
G23     65.1           83.7                4.6 +/-    0.58       4.6 +/-    0.58  0.020 / 0.030
G26     43.0           18.0                3.5 +/-    2.76       8.1 +/-    2.76  0.030 / 0.020
G27     104.3          31.2                5.7 +/-    1.36       9.7 +/-    1.36  0.030 / 0.060