PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-08:12:40
G01     75.7           32.3                4.2 +/-    0.80       6.9 +/-    0.80  0.050 / 0.030
G07     133.5          35.2                6.6 +/-    0.42      10.5 +/-    0.42  0.040 / 0.030
G11     59.0           36.9                4.4 +/-    0.67       6.7 +/-    0.67  0.050 / 0.100
G13     280.5          39.0                4.6 +/-    1.66       6.8 +/-    1.66  0.060 / 0.100
G15     306.7          14.2                1.6 +/-    2.06       4.0 +/-    2.06  0.050 / 0.110
G17     222.9          62.7                6.3 +/-    1.05       7.0 +/-    1.05  0.060 / 0.100
G19     219.1          38.9                4.9 +/-    1.48       7.3 +/-    1.48  0.050 / 0.080
G28     352.6          61.5                3.8 +/-    0.90       4.3 +/-    0.90  0.050 / 0.080
G30     128.0          70.2                7.0 +/-    0.67       7.3 +/-    0.67  0.040 / 0.050