PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/27-04:42:40
G08     268.8          19.5                6.4 +/-    2.21      14.2 +/-    2.21  0.030 / 0.020
G10     52.8           60.4                2.1 +/-    0.51       2.3 +/-    0.51  0.030 / 0.020
G11     312.1          17.2                3.6 +/-    3.36       8.5 +/-    3.36  0.140 / 0.210
G14     262.1          65.7                4.5 +/-    1.30       4.8 +/-    1.30  0.090 / 0.200
G18     87.3           40.1                3.7 +/-    1.43       5.3 +/-    1.43  0.150 / 0.210
G21     153.6          18.7                4.9 +/-    2.19      11.2 +/-    2.19  0.100 / 0.340
G24     41.8           13.9                2.8 +/-    3.12       7.2 +/-    3.12  0.020 / 0.010
G27     233.0          17.7                7.0 +/-    2.07      16.3 +/-    2.07  0.020 / 0.010
G31     178.9          26.9                6.5 +/-    0.90      12.2 +/-    0.90  0.140 / 0.180
G32     322.3          75.3                1.0 +/-    0.57       1.0 +/-    0.57  0.110 / 0.060