PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-07:57:40
G08     267.6          18.2                6.4 +/-    2.29      14.7 +/-    2.29  0.240 / 0.190
G10     63.0           57.2                3.5 +/-    0.59       4.1 +/-    0.59  0.250 / 0.270
G11     311.1          17.7               -6.4 +/-    7.14     -15.0 +/-    7.14  0.150 / 0.440
G14     267.4          67.0                3.0 +/-    0.94       3.2 +/-    0.94  0.210 / 0.390
G18     311.9          33.6                2.8 +/-    1.94       4.6 +/-    1.94  0.030 / 0.020
G20     95.8           36.3                4.6 +/-    1.03       7.1 +/-    1.03  0.030 / 0.030
G21     154.8          14.5                6.7 +/-    2.00      16.9 +/-    2.00  0.030 / 0.020
G27     232.8          16.3                7.8 +/-    2.50      18.8 +/-    2.50  0.020 / 0.020
G31     178.1          30.5                7.3 +/-    1.88      12.6 +/-    1.88  0.060 / 0.050
G32     323.8          74.5                3.8 +/-    0.47       3.9 +/-    0.47  0.040 / 0.050