PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-02:57:50
G08     312.3          17.5                7.4 +/-    1.96      17.4 +/-    1.96  0.060 / 0.080
G10     326.0          59.0                7.9 +/-    1.12       9.0 +/-    1.12  0.070 / 0.090
G14     216.7          25.4               11.8 +/-    2.26      22.7 +/-    2.26  0.080 / 0.270
G15     46.3           15.2                6.0 +/-    1.33      14.8 +/-    1.33  0.090 / 0.260
G20     357.0          64.9                9.4 +/-    0.30      10.3 +/-    0.30  0.030 / 0.040
G21     130.7          61.1                9.6 +/-    0.95      10.8 +/-    0.95  0.030 / 0.040
G24     76.5           29.6                8.2 +/-    0.74      14.5 +/-    0.74  0.040 / 0.060
G27     279.2          37.7               10.4 +/-    0.84      15.7 +/-    0.84  0.040 / 0.060
G32     220.5          51.1               12.0 +/-    0.97      14.9 +/-    0.97  0.060 / 0.080