PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-06:57:40
G08     278.1          20.7                9.3 +/-    2.20      20.0 +/-    2.20  0.040 / 0.060
G10     43.3           61.4                6.4 +/-    0.72       7.2 +/-    0.72  0.040 / 0.060
G14     247.2          56.2                8.3 +/-    1.45       9.7 +/-    1.45  0.100 / 0.170
G18     316.1          23.4                6.1 +/-    1.08      12.5 +/-    1.08  0.110 / 0.170
G20     90.6           35.0                6.8 +/-    0.85      10.7 +/-    0.85  0.060 / 0.160
G21     153.0          24.6                8.3 +/-    0.90      16.4 +/-    0.90  0.150 / 0.220
G24     43.7           15.9                4.4 +/-    3.24      10.7 +/-    3.24  0.130 / 0.290
G27     238.7          21.8                9.8 +/-    1.77      20.6 +/-    1.77  0.160 / 0.190
G31     178.6          23.1                8.3 +/-    2.20      17.0 +/-    2.20  0.150 / 0.350
G32     309.6          76.8                8.0 +/-    0.73       8.2 +/-    0.73  0.190 / 0.340