PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-22:12:40
G08     320.0          11.9                5.3 +/-    2.29      14.1 +/-    2.29  0.070 / 0.080
G10     305.5          54.4                7.1 +/-    0.99       8.6 +/-    0.99  0.080 / 0.080
G14     211.7          15.7               12.6 +/-    4.42      30.7 +/-    4.42  0.030 / 0.050
G15     46.1           28.7                5.8 +/-    1.07      10.5 +/-    1.07  0.030 / 0.040
G20     4.7            64.9                7.6 +/-    0.53       8.3 +/-    0.53  0.160 / 0.370
G21     110.6          70.6                9.6 +/-    1.01      10.1 +/-    1.01  0.130 / 0.310
G24     89.1           27.7                9.6 +/-    1.34      17.7 +/-    1.34  0.110 / 0.390
G27     295.7          35.5                8.6 +/-    1.24      13.5 +/-    1.24  0.110 / 0.310
G32     212.7          38.2               10.4 +/-    0.87      15.5 +/-    0.87  0.080 / 0.140