PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-10:27:50
G01     49.9           25.0                4.7 +/-    1.51       9.3 +/-    1.51  0.090 / 0.190
G06     176.7          24.2                5.3 +/-    2.39      10.6 +/-    2.39  0.180 / 0.170
G07     145.3          12.2                3.1 +/-    1.29       8.3 +/-    1.29  0.040 / 0.020
G11     45.2           18.0                2.9 +/-    1.79       6.7 +/-    1.79  0.030 / 0.020
G13     250.3          31.9                5.9 +/-    3.03      10.0 +/-    3.03  0.050 / 0.050
G15     285.0          15.7                4.6 +/-    1.15      11.4 +/-    1.15  0.050 / 0.040
G17     296.2          78.6                5.8 +/-    0.47       5.9 +/-    0.47  0.130 / 0.140
G19     244.6          61.0                5.4 +/-    0.61       6.1 +/-    0.61  0.120 / 0.130
G28     39.4           57.6                4.2 +/-    1.43       4.8 +/-    1.43  0.050 / 0.040
G30     149.8          44.6                6.7 +/-    0.55       9.0 +/-    0.55  0.040 / 0.060