PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-00:57:40
G10     249.7          26.0               13.4 +/-    1.43      25.6 +/-    1.43  0.130 / 0.750
G13     54.5           30.4                9.9 +/-    1.93      17.1 +/-    1.93  0.120 / 0.730
G15     92.1           58.7               11.9 +/-    0.73      13.7 +/-    0.73  0.040 / 0.060
G16     295.4          15.9                7.9 +/-    4.24      19.3 +/-    4.24  0.060 / 0.050
G20     261.0          38.5               13.8 +/-    1.30      20.5 +/-    1.30  0.110 / 0.150
G21     331.3          58.8                9.2 +/-    0.76      10.6 +/-    0.76  0.080 / 0.120
G26     267.3          16.1               12.3 +/-    3.54      29.9 +/-    3.54  0.030 / 0.060
G29     165.0          52.2               12.1 +/-    0.65      14.8 +/-    0.65  0.030 / 0.060