PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-05:57:50
G07     329.2          56.5                3.9 +/-    0.96       4.6 +/-    0.96  0.080 / 0.200
G08     103.3          50.3                8.1 +/-    1.09      10.2 +/-    1.09  0.080 / 0.200
G09     196.4          77.3                5.1 +/-    0.41       5.2 +/-    0.41  0.040 / 0.050
G11     147.4          10.5               -1.5 +/-   19.88      -4.1 +/-   19.88  0.040 / 0.050
G16     45.0           15.2                3.8 +/-    1.80       9.5 +/-    1.80  0.130 / 0.400
G23     154.5          47.6                8.8 +/-    1.20      11.4 +/-    1.20  0.160 / 0.390
G27     58.1           32.7                3.6 +/-    0.97       6.0 +/-    0.97  0.030 / 0.030
G28     234.6          27.1                7.3 +/-    1.87      13.6 +/-    1.87  0.040 / 0.030
G30     298.7          32.3                3.4 +/-    1.35       5.7 +/-    1.35  0.040 / 0.080