PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-03:57:50
G08     291.5          22.4                7.7 +/-    0.67      16.1 +/-    0.67  0.090 / 0.110
G10     19.4           62.6                8.1 +/-    0.59       9.0 +/-    0.59  0.120 / 0.100
G14     232.9          49.7               10.4 +/-    2.23      13.1 +/-    2.23  0.040 / 0.030
G18     317.8          14.1                4.4 +/-    2.05      11.3 +/-    2.05  0.040 / 0.020
G20     70.7           50.2                6.2 +/-    0.64       7.9 +/-    0.64  0.050 / 0.100
G21     148.7          36.9                7.6 +/-    0.80      11.6 +/-    0.80  0.050 / 0.090
G24     52.8           23.7                4.0 +/-    2.31       8.1 +/-    2.31  0.070 / 0.110
G27     251.1          30.0                9.6 +/-    2.06      16.9 +/-    2.06  0.090 / 0.100
G31     182.4          10.6               -4.9 +/-   12.17     -13.5 +/-   12.17  0.250 / 0.340
G32     251.8          69.0                7.8 +/-    0.65       8.2 +/-    0.65  0.190 / 0.280