PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-03:57:40
G01     319.2          18.6                7.7 +/-    2.20      17.5 +/-    2.20  0.100 / 0.180
G08     261.0          13.8                9.0 +/-    2.03      23.0 +/-    2.03  0.160 / 0.180
G10     79.6           52.1                6.4 +/-    0.69       7.9 +/-    0.69  0.030 / 0.040
G11     304.0          22.3                8.2 +/-    1.97      17.1 +/-    1.97  0.040 / 0.040
G14     292.3          70.4                8.1 +/-    0.97       8.6 +/-    0.97  0.060 / 0.040
G18     305.0          40.8                8.0 +/-    2.22      11.5 +/-    2.22  0.070 / 0.050
G20     104.8          29.9                7.0 +/-    2.28      12.3 +/-    2.28  0.060 / 0.100
G31     174.7          42.2                9.7 +/-    0.70      13.6 +/-    0.70  0.090 / 0.080
G32     2.6            68.9                7.0 +/-    0.61       7.4 +/-    0.61  0.100 / 0.390