PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-07:43:00
G01     39.5           13.4                1.2 +/-    2.80       3.1 +/-    2.80  0.080 / 0.060
G02     198.9          12.9                2.4 +/-    2.08       6.3 +/-    2.08  0.060 / 0.070
G06     178.5          39.2                4.6 +/-    0.67       6.7 +/-    0.67  0.110 / 0.220
G13     235.8          19.6                5.8 +/-    4.98      13.0 +/-    4.98  0.180 / 0.280
G15     267.0          11.2                6.2 +/-    1.33      16.8 +/-    1.33  0.040 / 0.020
G17     10.9           66.7                2.3 +/-    0.36       2.5 +/-    0.36  0.030 / 0.020
G19     293.7          71.4                2.8 +/-    0.49       2.9 +/-    0.49  0.270 / 0.180
G24     315.8          21.2                2.6 +/-    2.36       5.5 +/-    2.36  0.060 / 0.340
G28     77.3           44.4                3.9 +/-    0.75       5.4 +/-    0.75  0.370 / 0.470
G30     155.0          22.5                5.5 +/-    2.63      11.4 +/-    2.63  0.140 / 0.200