PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-08:58:00
G01     96.1           29.0                3.3 +/-    0.94       6.0 +/-    0.94  0.030 / 0.030
G07     118.8          49.7                5.2 +/-    1.30       6.6 +/-    1.30  0.030 / 0.030
G08     41.8           15.1                2.0 +/-    1.78       4.9 +/-    1.78  0.030 / 0.050
G11     78.3           43.8                5.6 +/-    0.60       7.7 +/-    0.60  0.030 / 0.050
G13     301.0          34.7                5.5 +/-    1.53       8.7 +/-    1.53  0.040 / 0.070
G17     209.3          44.6                7.2 +/-    1.16       9.8 +/-    1.16  0.040 / 0.060
G18     70.1           24.6                4.6 +/-    0.58       9.0 +/-    0.58  0.080 / 0.120
G19     210.6          22.8                3.0 +/-    3.51       6.2 +/-    3.51  0.080 / 0.130
G28     320.0          60.0                4.5 +/-    0.85       5.1 +/-    0.85  0.070 / 0.170
G30     62.5           80.7                4.0 +/-    0.43       4.1 +/-    0.43  0.080 / 0.170