PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/30-14:12:40
G08     316.4          14.4                1.8 +/-    3.03       4.6 +/-    3.03  0.040 / 0.070
G10     318.1          57.3                2.8 +/-    0.73       3.3 +/-    0.73  0.060 / 0.060
G14     215.0          23.3                6.3 +/-    2.23      12.9 +/-    2.23  0.400 / 0.200
G15     45.8           15.1                3.6 +/-    2.22       9.0 +/-    2.22  0.140 / 0.250
G20     79.5           13.6                4.8 +/-    1.57      12.3 +/-    1.57  0.040 / 0.030
G21     126.6          60.4                5.3 +/-    0.46       6.0 +/-    0.46  0.030 / 0.040
G24     83.2           30.1                5.7 +/-    1.83      10.0 +/-    1.83  0.110 / 0.320
G27     282.8          38.0                7.1 +/-    1.75      10.7 +/-    1.75  0.170 / 0.350
G32     218.0          45.7                6.9 +/-    1.00       9.2 +/-    1.00  0.090 / 0.080