PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-01:28:00
G10     251.8          27.7               10.9 +/-    1.83      20.0 +/-    1.83  0.050 / 0.050
G13     52.3           29.1                9.8 +/-    1.36      17.6 +/-    1.36  0.040 / 0.050
G15     86.5           58.2               11.0 +/-    0.98      12.6 +/-    0.98  0.130 / 0.250
G16     293.0          15.7                8.4 +/-    1.57      20.6 +/-    1.57  0.110 / 0.270
G20     265.4          43.4               10.3 +/-    2.97      14.3 +/-    2.97  0.040 / 0.040
G21     334.3          60.6               10.0 +/-    0.43      11.3 +/-    0.43  0.040 / 0.050
G26     265.0          15.1               11.2 +/-    1.37      27.8 +/-    1.37  0.060 / 0.160
G29     165.6          49.3               12.7 +/-    0.57      16.1 +/-    0.57  0.110 / 0.130