PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-13:27:40
G02     237.5          72.0                6.8 +/-    0.93       7.1 +/-    0.93  0.120 / 0.280
G05     175.0          13.0                7.1 +/-    3.51      18.7 +/-    3.51  0.120 / 0.310
G06     40.8           58.5                8.4 +/-    0.72       9.6 +/-    0.72  0.100 / 0.080
G12     322.1          53.4                5.9 +/-    1.08       7.1 +/-    1.08  0.080 / 0.100
G17     71.2           21.0                6.5 +/-    1.00      13.8 +/-    1.00  0.050 / 0.030
G19     52.9           42.4                8.2 +/-    2.50      11.5 +/-    2.50  0.050 / 0.040
G24     242.3          34.9                8.7 +/-    1.04      13.9 +/-    1.04  0.040 / 0.030
G25     316.5          14.4                3.7 +/-    2.28       9.2 +/-    2.28  0.040 / 0.030