PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-14:57:30
G02     228.8          67.3                5.2 +/-    0.67       5.6 +/-    0.67  0.060 / 0.090
G05     174.9          10.3               -8.2 +/-   16.11     -22.8 +/-   16.11  0.050 / 0.110
G06     42.9           63.2                7.2 +/-    0.42       8.0 +/-    0.42  0.050 / 0.060
G12     320.8          46.1                6.0 +/-    0.80       8.0 +/-    0.80  0.060 / 0.070
G17     64.1           28.1                5.3 +/-    0.57       9.7 +/-    0.57  0.080 / 0.520
G19     52.1           40.7                7.2 +/-    0.83      10.4 +/-    0.83  0.110 / 0.520
G24     252.9          37.5                9.2 +/-    1.25      14.0 +/-    1.25  0.080 / 0.290
G28     127.7          11.5                5.9 +/-    2.46      15.9 +/-    2.46  0.130 / 0.250