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                7.2 +/-    0.63      12.5 +/-    0.63  0.050 / 0.050
G07     124.0          45.0                9.9 +/-    1.09      13.3 +/-    1.09  0.040 / 0.060
G08     42.2           11.5                2.1 +/-    2.73       5.6 +/-    2.73  0.040 / 0.070
G11     71.4           42.1                7.6 +/-    0.53      10.7 +/-    0.53  0.070 / 0.060
G13     295.6          36.7                5.5 +/-    1.08       8.5 +/-    1.08  0.050 / 0.050
G17     212.5          49.2                7.6 +/-    1.76       9.7 +/-    1.76  0.040 / 0.060
G18     64.8           24.0                5.6 +/-    1.20      11.1 +/-    1.20  0.080 / 0.100
G19     212.7          27.4                5.3 +/-    1.83       9.8 +/-    1.83  0.070 / 0.110
G28     330.1          60.9                6.8 +/-    1.40       7.7 +/-    1.40  0.080 / 0.120
G30     94.2           78.7                7.9 +/-    0.36       8.1 +/-    0.36  0.080 / 0.130