PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-09:58:00
G01     90.5           30.7                6.3 +/-    1.09      10.8 +/-    1.09  0.040 / 0.060
G07     124.0          45.0                9.7 +/-    0.53      13.0 +/-    0.53  0.040 / 0.050
G08     42.2           11.5                2.5 +/-    2.61       6.9 +/-    2.61  0.040 / 0.050
G11     71.4           42.1                6.8 +/-    0.85       9.5 +/-    0.85  0.030 / 0.050
G13     295.6          36.7                6.2 +/-    4.99       9.5 +/-    4.99  0.060 / 0.130
G17     212.5          49.2                7.8 +/-    0.72       9.9 +/-    0.72  0.060 / 0.120
G18     64.8           24.0                5.7 +/-    1.73      11.4 +/-    1.73  0.110 / 0.130
G19     212.7          27.4                5.2 +/-    1.64       9.7 +/-    1.64  0.170 / 0.140
G28     330.1          60.9                5.5 +/-    0.72       6.2 +/-    0.72  0.040 / 0.050
G30     94.2           78.7                7.1 +/-    0.43       7.3 +/-    0.43  0.040 / 0.050