PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-06:28:10
G01     55.1           27.8                2.3 +/-    2.56       4.2 +/-    2.56  0.030 / 0.040
G06     178.3          17.9                4.8 +/-    1.87      11.0 +/-    1.87  0.040 / 0.040
G07     143.1          19.4                5.8 +/-    1.34      12.9 +/-    1.34  0.030 / 0.020
G11     47.8           24.7                5.0 +/-    2.30       9.8 +/-    2.30  0.030 / 0.020
G13     257.2          35.1               11.4 +/-    1.36      18.1 +/-    1.36  0.120 / 0.250
G15     288.7          17.0                6.2 +/-    1.07      14.6 +/-    1.07  0.110 / 0.230
G17     271.2          78.5                8.1 +/-    0.43       8.3 +/-    0.43  0.050 / 0.070
G19     235.5          55.9                9.9 +/-    1.88      11.7 +/-    1.88  0.040 / 0.050
G28     26.1           59.7                5.7 +/-    0.67       6.5 +/-    0.67  0.120 / 0.170
G30     146.8          53.0                9.5 +/-    0.47      11.5 +/-    0.47  0.080 / 0.140