PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-09:12:50
G01     54.2           27.9                2.1 +/-    2.10       3.8 +/-    2.10  0.060 / 0.040
G06     180.9          18.2                4.9 +/-    3.47      11.2 +/-    3.47  0.040 / 0.030
G07     144.6          15.7                5.9 +/-    0.93      14.3 +/-    0.93  0.110 / 0.210
G11     45.9           18.2                2.5 +/-    2.72       5.8 +/-    2.72  0.150 / 0.200
G13     257.5          32.6                5.7 +/-    2.48       9.5 +/-    2.48  0.020 / 0.020
G15     288.3          16.5                5.1 +/-    1.30      12.3 +/-    1.30  0.020 / 0.020
G17     297.9          79.6                5.8 +/-    0.63       5.9 +/-    0.63  0.160 / 0.210
G19     240.8          57.7                7.7 +/-    2.03       9.0 +/-    2.03  0.110 / 0.250
G28     46.3           54.3                4.5 +/-    0.64       5.4 +/-    0.64  0.180 / 0.260
G30     147.0          46.1                7.9 +/-    0.49      10.5 +/-    0.49  0.160 / 0.170