PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-05:13:00
G01     125.1          11.4                6.8 +/-    3.59      18.6 +/-    3.59  0.040 / 0.040
G07     54.2           69.3                6.8 +/-    0.41       7.2 +/-    0.41  0.040 / 0.040
G08     50.9           40.0                5.5 +/-    1.58       8.0 +/-    1.58  0.060 / 0.050
G09     175.8          34.1                8.4 +/-    1.31      13.5 +/-    1.31  0.060 / 0.040
G11     121.7          36.1                7.3 +/-    0.94      11.4 +/-    0.94  0.030 / 0.040
G13     320.6          12.8                2.7 +/-    1.99       7.0 +/-    1.99  0.030 / 0.030
G17     199.4          14.1                5.8 +/-    3.56      14.7 +/-    3.56  0.180 / 0.360
G28     267.8          46.2                6.9 +/-    2.98       9.1 +/-    2.98  0.230 / 0.470
G30     328.4          58.0                6.4 +/-    0.59       7.4 +/-    0.59  0.120 / 0.110