PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-22:27:50
G08     318.0          13.6               14.8 +/-    2.33      38.1 +/-    2.33  0.080 / 0.040
G10     308.3          54.8               12.3 +/-    1.16      14.7 +/-    1.16  0.080 / 0.060
G14     212.5          20.5               15.8 +/-    4.14      34.4 +/-    4.14  0.030 / 0.030
G15     45.5           21.5                9.9 +/-    3.13      21.0 +/-    3.13  0.030 / 0.030
G18     15.6           64.1               11.4 +/-    0.95      12.5 +/-    0.95  0.070 / 0.100
G20     77.1           13.0                8.3 +/-    1.58      21.6 +/-    1.58  0.080 / 0.100
G21     117.4          66.7               14.2 +/-    1.12      15.3 +/-    1.12  0.050 / 0.080
G24     90.4           29.1               13.2 +/-    1.60      23.6 +/-    1.60  0.040 / 0.050
G27     289.4          37.5               11.6 +/-    1.26      17.6 +/-    1.26  0.120 / 0.250
G32     215.1          36.6               13.6 +/-    1.09      21.0 +/-    1.09  0.120 / 0.200