PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-08:58:00
G01     56.5           28.6                3.4 +/-    1.53       6.1 +/-    1.53  0.030 / 0.040
G06     178.4          17.1                4.0 +/-    1.80       9.5 +/-    1.80  0.040 / 0.040
G07     142.6          19.5                5.9 +/-    2.34      13.2 +/-    2.34  0.090 / 0.070
G11     47.9           24.6                4.3 +/-    1.50       8.6 +/-    1.50  0.100 / 0.070
G13     258.7          35.5                6.9 +/-    1.69      10.9 +/-    1.69  0.040 / 0.060
G15     291.3          16.5                4.6 +/-    4.31      11.0 +/-    4.31  0.040 / 0.050
G17     261.8          76.8                6.9 +/-    0.46       7.1 +/-    0.46  0.150 / 0.400
G19     234.1          54.7                6.7 +/-    1.91       8.0 +/-    1.91  0.120 / 0.330
G28     25.5           59.6                6.0 +/-    0.44       6.8 +/-    0.44  0.050 / 0.090
G30     145.8          53.0                8.6 +/-    0.65      10.5 +/-    0.65  0.060 / 0.110