PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-06:57:40
G07     352.7          64.0                3.0 +/-    0.76       3.3 +/-    0.76  0.050 / 0.080
G08     77.3           50.9                4.7 +/-    0.53       5.9 +/-    0.53  0.050 / 0.090
G09     174.8          56.6                7.1 +/-    1.03       8.3 +/-    1.03  0.030 / 0.040
G11     137.4          20.6                5.3 +/-    1.69      11.4 +/-    1.69  0.030 / 0.040
G23     159.0          32.2                5.6 +/-    1.28       9.4 +/-    1.28  0.060 / 0.100
G27     47.4           26.5                3.0 +/-    1.12       5.6 +/-    1.12  0.060 / 0.110
G28     246.0          36.5                6.8 +/-    1.00      10.5 +/-    1.00  0.060 / 0.110
G30     309.3          40.9                3.0 +/-    1.31       4.3 +/-    1.31  0.060 / 0.100