PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/15-14:42:30
G10     291.9          50.9                6.0 +/-    2.62       7.5 +/-    2.62  0.060 / 0.090
G15     46.4           29.0                4.4 +/-    1.44       7.9 +/-    1.44  0.060 / 0.080
G20     349.1          65.5                6.2 +/-    0.60       6.7 +/-    0.60  0.040 / 0.040
G21     79.8           75.5                6.8 +/-    0.39       7.0 +/-    0.39  0.030 / 0.040
G24     104.8          24.5                8.6 +/-    0.93      17.0 +/-    0.93  0.120 / 0.200
G27     305.9          32.1                5.2 +/-    1.32       8.7 +/-    1.32  0.200 / 0.210
G29     168.2          13.3                6.6 +/-    1.11      17.1 +/-    1.11  0.090 / 0.080
G32     207.6          28.5                7.9 +/-    1.83      14.3 +/-    1.83  0.090 / 0.070