PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-08:43:00
G01     53.1           27.3                3.3 +/-    2.53       6.1 +/-    2.53  0.050 / 0.050
G06     180.9          19.1                5.9 +/-    1.92      13.3 +/-    1.92  0.040 / 0.050
G07     145.0          14.7                7.6 +/-    2.36      19.0 +/-    2.36  0.200 / 0.330
G11     45.5           17.4                2.9 +/-    2.13       6.8 +/-    2.13  0.120 / 0.300
G13     256.0          32.0                4.6 +/-    2.03       7.8 +/-    2.03  0.030 / 0.020
G15     286.9          16.4                5.3 +/-    1.48      12.6 +/-    1.48  0.020 / 0.020
G17     304.4          79.5                6.8 +/-    0.70       6.9 +/-    0.70  0.140 / 0.260
G19     242.5          58.7                7.8 +/-    1.45       8.9 +/-    1.45  0.100 / 0.240
G28     48.2           53.8                5.6 +/-    0.83       6.7 +/-    0.83  0.110 / 0.150
G30     147.6          44.5                9.0 +/-    0.57      12.3 +/-    0.57  0.130 / 0.140