PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-00:12:50
G10     262.8          34.8               10.3 +/-    1.08      16.3 +/-    1.08  0.130 / 0.420
G13     44.6           22.7                6.7 +/-    2.13      13.9 +/-    2.13  0.130 / 0.300
G15     65.5           52.9                9.7 +/-    0.64      11.8 +/-    0.64  0.140 / 0.320
G16     284.8          12.5               10.3 +/-    3.39      27.1 +/-    3.39  0.220 / 0.270
G18     291.1          62.3                9.1 +/-    1.05      10.1 +/-    1.05  0.060 / 0.080
G20     52.5           36.6                7.8 +/-    1.62      12.0 +/-    1.62  0.060 / 0.090
G21     354.7          69.7                8.5 +/-    0.46       9.0 +/-    0.46  0.040 / 0.040
G24     124.6          11.6               10.1 +/-    5.16      27.3 +/-    5.16  0.050 / 0.040
G27     319.4          17.3                8.4 +/-    2.24      19.6 +/-    2.24  0.060 / 0.090
G29     166.6          32.6               12.1 +/-    1.03      20.1 +/-    1.03  0.070 / 0.070