PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-12:28:10
G02     201.7          22.4                5.3 +/-    1.56      10.9 +/-    1.56  0.050 / 0.090
G06     166.4          59.0                9.4 +/-    0.94      10.8 +/-    0.94  0.040 / 0.090
G13     223.0          10.7                4.8 +/-    2.30      13.1 +/-    2.30  0.040 / 0.030
G17     23.2           58.5                6.6 +/-    0.17       7.6 +/-    0.17  0.030 / 0.040
G19     341.4          69.9                7.0 +/-    0.67       7.4 +/-    0.67  0.080 / 0.110
G24     307.5          31.3                5.8 +/-    1.31      10.0 +/-    1.31  0.070 / 0.100
G28     87.5           43.2                6.4 +/-    0.71       8.8 +/-    0.71  0.120 / 0.480
G30     157.9          11.9                5.2 +/-    1.53      13.8 +/-    1.53  0.170 / 0.350