PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-21:42:50
G01     289.7          40.3                2.6 +/-    2.10       3.7 +/-    2.10  0.040 / 0.120
G03     312.2          17.3                8.3 +/-    1.41      19.6 +/-    1.41  0.050 / 0.100
G10     120.4          28.7               10.2 +/-    0.64      18.4 +/-    0.64  0.090 / 0.120
G11     264.5          26.1                8.5 +/-    3.00      16.2 +/-    3.00  0.080 / 0.140
G14     26.1           58.0                7.5 +/-    1.58       8.7 +/-    1.58  0.020 / 0.020
G22     313.7          38.3                6.4 +/-    1.71       9.6 +/-    1.71  0.020 / 0.020
G25     65.4           18.7                7.1 +/-    1.88      16.2 +/-    1.88  0.040 / 0.060
G26     158.1          12.8               12.7 +/-    1.66      33.3 +/-    1.66  0.040 / 0.050
G31     138.9          79.2                9.9 +/-    0.33      10.1 +/-    0.33  0.060 / 0.090
G32     50.9           42.5                6.5 +/-    1.10       9.1 +/-    1.10  0.050 / 0.080