PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-23:42:40
G10     242.5          20.9               10.7 +/-    3.06      23.1 +/-    3.06  0.150 / 0.270
G13     63.2           33.4                8.1 +/-    1.29      13.3 +/-    1.29  0.120 / 0.220
G15     106.0          56.9               10.6 +/-    0.57      12.4 +/-    0.57  0.040 / 0.060
G16     306.4          14.5                4.4 +/-    1.84      10.9 +/-    1.84  0.030 / 0.060
G20     257.7          43.7               10.6 +/-    2.24      14.6 +/-    2.24  0.100 / 0.130
G21     322.5          52.7                8.2 +/-    0.80      10.0 +/-    0.80  0.090 / 0.120
G26     278.5          18.6                7.4 +/-    2.10      16.8 +/-    2.10  0.040 / 0.040
G29     158.9          60.6               10.2 +/-    0.83      11.5 +/-    0.83  0.030 / 0.040