PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-02:12:50
G01     320.4          12.9                0.9 +/-   30.57       2.3 +/-   30.57  0.040 / 0.030
G08     261.3          16.2               12.9 +/-    1.28      31.1 +/-    1.28  0.030 / 0.020
G10     68.3           57.2                8.9 +/-    1.06      10.4 +/-    1.06  0.150 / 0.240
G11     307.0          21.5               10.3 +/-    2.24      21.9 +/-    2.24  0.120 / 0.260
G14     282.2          69.8                7.9 +/-    0.40       8.4 +/-    0.40  0.240 / 0.630
G18     95.8           33.9                8.2 +/-    1.28      13.3 +/-    1.28  0.210 / 0.400
G21     154.6          10.1                6.3 +/-    1.67      17.5 +/-    1.67  0.240 / 0.190
G27     227.1          12.3               11.1 +/-    1.75      29.3 +/-    1.75  0.180 / 0.330
G31     178.6          33.9                8.9 +/-    0.77      14.4 +/-    0.77  0.060 / 0.080
G32     345.1          72.4                8.7 +/-    0.24       9.1 +/-    0.24  0.060 / 0.080