PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-15:57:40
G10     298.5          52.4                6.2 +/-    0.89       7.6 +/-    0.89  0.040 / 0.050
G14     210.0          12.6                5.8 +/-    9.31      15.2 +/-    9.31  0.030 / 0.050
G15     46.2           28.9                2.6 +/-    0.92       4.7 +/-    0.92  0.040 / 0.050
G20     353.8          65.3                3.9 +/-    1.36       4.2 +/-    1.36  0.040 / 0.040
G21     102.8          70.9                6.5 +/-    0.39       6.8 +/-    0.39  0.100 / 0.130
G24     92.3           26.1                6.9 +/-    1.17      13.2 +/-    1.17  0.090 / 0.140
G27     302.3          32.8                6.3 +/-    1.24      10.5 +/-    1.24  0.110 / 0.460
G32     210.8          31.5                6.9 +/-    1.72      11.7 +/-    1.72  0.080 / 0.390