PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-07:43:00
G03     233.4          67.8                7.2 +/-    0.55       7.7 +/-    0.55  0.100 / 0.280
G07     249.2          11.2               -3.9 +/-   15.80     -10.6 +/-   15.80  0.110 / 0.330
G09     303.7          18.4                5.4 +/-    3.43      12.4 +/-    3.43  0.120 / 0.320
G14     100.0          14.3                3.9 +/-    2.48       9.8 +/-    2.48  0.110 / 0.330
G16     123.6          59.2                8.0 +/-    0.57       9.2 +/-    0.57  0.050 / 0.050
G22     195.5          54.1                8.1 +/-    0.59       9.8 +/-    0.59  0.050 / 0.050
G23     323.7          53.6                5.7 +/-    0.45       6.9 +/-    0.45  0.120 / 0.140
G26     67.5           50.9                6.4 +/-    1.03       7.9 +/-    1.03  0.120 / 0.130
G31     53.4           17.2                2.2 +/-    1.89       5.3 +/-    1.89  0.030 / 0.040