PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-23:27:50
G08     268.9          19.6                7.9 +/-    2.80      17.6 +/-    2.80  0.130 / 0.240
G10     55.5           59.3                9.1 +/-    0.79      10.4 +/-    0.79  0.140 / 0.220
G14     259.2          63.8                8.4 +/-    0.96       9.2 +/-    0.96  0.200 / 0.200
G18     313.6          30.1                7.2 +/-    1.03      12.6 +/-    1.03  0.130 / 0.300
G20     92.1           38.8                8.9 +/-    1.27      13.3 +/-    1.27  0.050 / 0.050
G21     154.1          18.2               12.3 +/-    2.33      28.3 +/-    2.33  0.040 / 0.040
G24     39.8           10.1                6.8 +/-    4.95      19.0 +/-    4.95  0.120 / 0.360
G27     235.4          18.4               10.8 +/-    5.13      24.7 +/-    5.13  0.080 / 0.350
G31     178.8          27.2               12.7 +/-    2.14      23.7 +/-    2.14  0.120 / 0.390
G32     330.7          75.4                8.4 +/-    0.40       8.7 +/-    0.40  0.150 / 0.200