PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-05:42:50
G01     50.3           25.1                3.9 +/-    1.71       7.6 +/-    1.71  0.040 / 0.050
G06     177.2          22.6                6.0 +/-    3.22      12.5 +/-    3.22  0.040 / 0.040
G07     145.1          14.9                7.7 +/-    4.33      19.2 +/-    4.33  0.120 / 0.250
G11     46.1           20.9                3.2 +/-    2.73       6.9 +/-    2.73  0.140 / 0.250
G13     251.3          32.6                7.2 +/-    1.77      12.0 +/-    1.77  0.040 / 0.050
G15     283.1          16.6                5.0 +/-    3.12      11.9 +/-    3.12  0.050 / 0.050
G17     303.1          79.7                6.2 +/-    0.75       6.3 +/-    0.75  0.020 / 0.020
G19     242.8          60.4                6.3 +/-    1.14       7.1 +/-    1.14  0.030 / 0.020
G28     35.0           58.6                5.3 +/-    2.01       6.1 +/-    2.01  0.250 / 0.300
G30     149.9          47.9                8.1 +/-    0.94      10.5 +/-    0.94  0.120 / 0.330