PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-18:12:50
G01     99.7           29.0               12.8 +/-    1.35      22.8 +/-    1.35  0.130 / 0.250
G07     116.5          53.1               14.0 +/-    0.56      17.0 +/-    0.56  0.120 / 0.300
G08     41.9           16.2                9.7 +/-    1.47      23.4 +/-    1.47  0.030 / 0.050
G11     80.1           42.6               13.9 +/-    0.70      19.4 +/-    0.70  0.030 / 0.060
G13     303.5          32.5               13.6 +/-    1.44      22.5 +/-    1.44  0.040 / 0.040
G17     209.9          42.4               15.6 +/-    1.29      21.8 +/-    1.29  0.040 / 0.040
G18     73.0           24.8               12.7 +/-    0.95      25.0 +/-    0.95  0.050 / 0.090
G19     211.5          17.9               12.4 +/-    2.02      28.6 +/-    2.02  0.040 / 0.090
G28     332.7          61.8               12.4 +/-    0.71      13.8 +/-    0.71  0.060 / 0.190
G30     66.4           79.4               13.4 +/-    1.24      13.6 +/-    1.24  0.070 / 0.170