PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-14:58:00
G10     299.5          52.8                4.4 +/-    0.91       5.4 +/-    0.91  0.030 / 0.040
G14     210.2          13.3                6.7 +/-    2.23      17.3 +/-    2.23  0.030 / 0.040
G15     46.1           27.9                2.6 +/-    1.71       4.9 +/-    1.71  0.100 / 0.420
G20     355.4          65.3                4.1 +/-    1.49       4.5 +/-    1.49  0.090 / 0.480
G21     105.4          69.7                4.9 +/-    0.56       5.2 +/-    0.56  0.030 / 0.030
G24     92.2           26.3                7.5 +/-    0.88      14.2 +/-    0.88  0.040 / 0.040
G27     301.9          32.9                5.2 +/-    1.31       8.5 +/-    1.31  0.080 / 0.130
G32     211.1          31.7                7.3 +/-    2.84      12.4 +/-    2.84  0.080 / 0.110