PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/27-14:43:00
G01     42.3           17.7                6.9 +/-    0.66      16.0 +/-    0.66  0.180 / 0.300
G06     175.7          36.6               11.6 +/-    0.92      17.9 +/-    0.92  0.210 / 0.320
G13     241.7          23.6                8.8 +/-    0.80      17.8 +/-    0.80  0.080 / 0.220
G15     275.1          13.1                9.7 +/-    1.20      25.3 +/-    1.20  0.080 / 0.210
G17     4.2            70.5                9.4 +/-    0.82       9.9 +/-    0.82  0.060 / 0.090
G19     275.6          69.8                8.9 +/-    0.80       9.4 +/-    0.80  0.050 / 0.130
G24     317.9          15.9                7.2 +/-    3.12      17.4 +/-    3.12  0.020 / 0.050
G28     69.2           47.7                8.6 +/-    0.41      11.2 +/-    0.41  0.030 / 0.040
G30     154.2          31.5               10.4 +/-    0.57      17.7 +/-    0.57  0.090 / 0.130