PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-23:43:00
G01     320.2          14.9                0.1 +/-   27.69       0.3 +/-   27.69  0.170 / 0.380
G08     259.0          15.0                6.7 +/-    1.87      16.6 +/-    1.87  0.150 / 0.300
G10     74.3           54.7                7.7 +/-    0.41       9.1 +/-    0.41  0.150 / 0.290
G11     305.5          22.0                6.6 +/-    1.64      13.9 +/-    1.64  0.290 / 0.290
G14     284.6          69.4                7.4 +/-    0.56       7.9 +/-    0.56  0.030 / 0.050
G18     307.1          38.8                6.5 +/-    1.91       9.6 +/-    1.91  0.040 / 0.050
G20     102.2          31.7                6.9 +/-    0.81      11.7 +/-    0.81  0.150 / 0.210
G27     227.6          11.4                9.4 +/-    1.99      25.4 +/-    1.99  0.100 / 0.170
G31     176.7          38.2                9.4 +/-    0.99      14.0 +/-    0.99  0.150 / 0.270
G32     2.3            69.5                6.3 +/-    0.36       6.7 +/-    0.36  0.150 / 0.250