PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/18-22:27:50
G01     319.9          16.0                7.9 +/-    4.22      19.3 +/-    4.22  0.190 / 0.350
G08     257.7          14.4                9.3 +/-    2.65      23.5 +/-    2.65  0.160 / 0.270
G10     76.4           54.0                8.8 +/-    0.74      10.5 +/-    0.74  0.210 / 0.360
G11     304.3          22.7                7.0 +/-    1.57      14.5 +/-    1.57  0.170 / 0.300
G14     289.1          70.1                9.5 +/-    0.92      10.0 +/-    0.92  0.040 / 0.050
G18     305.7          40.1                9.0 +/-    0.99      13.1 +/-    0.99  0.040 / 0.050
G20     103.3          30.7               11.4 +/-    1.04      19.6 +/-    1.04  0.110 / 0.240
G27     227.0          10.7               10.0 +/-    3.71      27.4 +/-    3.71  0.120 / 0.240
G31     177.1          38.9               11.8 +/-    1.41      17.4 +/-    1.41  0.080 / 0.200
G32     4.1            68.8               10.1 +/-    0.44      10.7 +/-    0.44  0.080 / 0.260