PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-10:12:50
G01     111.2          22.0                5.0 +/-    0.98      10.6 +/-    0.98  0.030 / 0.050
G07     99.1           60.1                6.2 +/-    0.60       7.1 +/-    0.60  0.030 / 0.040
G08     43.5           28.7                2.7 +/-    0.76       4.9 +/-    0.76  0.080 / 0.150
G09     175.6          19.2                5.5 +/-    0.87      12.4 +/-    0.87  0.080 / 0.210
G11     98.1           43.4               -2.1 +/-    0.49      -2.9 +/-    0.49  0.050 / 0.070
G13     313.1          26.0                4.6 +/-    2.80       8.9 +/-    2.80  0.040 / 0.070
G17     203.8          28.7                5.4 +/-    1.42       9.8 +/-    1.42  0.080 / 0.220
G18     85.8           23.1                3.0 +/-    0.83       6.2 +/-    0.83  0.070 / 0.190
G28     294.8          55.9                4.6 +/-    0.96       5.4 +/-    0.96  0.080 / 0.220
G30     359.3          74.2                6.1 +/-    0.70       6.3 +/-    0.70  0.080 / 0.210