PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-03:27:50
G08     308.9          19.6                7.7 +/-    1.76      17.1 +/-    1.76  0.030 / 0.040
G10     328.3          59.3                5.7 +/-    1.15       6.5 +/-    1.15  0.030 / 0.040
G14     217.7          31.8                7.3 +/-    2.39      12.2 +/-    2.39  0.070 / 0.080
G15     46.5           14.1                2.8 +/-    2.30       7.2 +/-    2.30  0.090 / 0.100
G18     33.9           60.8                6.4 +/-    0.47       7.2 +/-    0.47  0.090 / 0.220
G21     132.8          58.1                7.2 +/-    0.75       8.3 +/-    0.75  0.060 / 0.150
G24     76.6           30.6                6.9 +/-    0.52      11.9 +/-    0.52  0.260 / 0.240
G27     274.0          37.7                8.4 +/-    1.00      12.8 +/-    1.00  0.060 / 0.090
G32     222.8          50.7                9.5 +/-    1.09      11.8 +/-    1.09  0.040 / 0.060