PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-18:12:40
G03     191.8          27.7               11.9 +/-    3.95      21.9 +/-    3.95  0.090 / 0.160
G07     284.3          36.6               10.5 +/-    1.25      16.1 +/-    1.25  0.130 / 0.210
G08     145.9          21.1               15.5 +/-    2.43      33.1 +/-    2.43  0.090 / 0.130
G09     320.2          53.2               10.7 +/-    1.72      13.0 +/-    1.72  0.070 / 0.110
G16     49.4           52.6               10.1 +/-    0.36      12.3 +/-    0.36  0.080 / 0.250
G22     178.3          12.0               11.6 +/-    2.69      31.0 +/-    2.69  0.090 / 0.310
G23     37.1           83.1                9.0 +/-    0.79       9.0 +/-    0.79  0.020 / 0.030
G26     43.7           23.0                8.2 +/-    1.20      16.8 +/-    1.20  0.020 / 0.040
G27     112.3          28.9               15.1 +/-    1.06      27.1 +/-    1.06  0.060 / 0.080