PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/23-04:58:10
G08     269.0          19.6                6.0 +/-    3.90      13.3 +/-    3.90  0.030 / 0.040
G10     52.5           60.5                5.1 +/-    1.44       5.8 +/-    1.44  0.030 / 0.040
G11     312.1          17.2                4.9 +/-    4.15      11.7 +/-    4.15  0.100 / 0.380
G14     261.7          65.6                4.5 +/-    0.86       4.9 +/-    0.86  0.240 / 0.390
G18     87.0           40.3                5.1 +/-    0.62       7.4 +/-    0.62  0.110 / 0.290
G21     153.6          19.0                7.1 +/-    3.02      15.9 +/-    3.02  0.090 / 0.350
G24     41.8           14.0                4.6 +/-    2.94      11.6 +/-    2.94  0.030 / 0.020
G27     233.1          17.8                7.7 +/-    4.30      17.9 +/-    4.30  0.040 / 0.020
G31     178.8          26.8                5.5 +/-    2.80      10.3 +/-    2.80  0.080 / 0.070
G32     322.2          75.4                5.7 +/-    0.67       5.9 +/-    0.67  0.090 / 0.070