PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-21:27:50
G01     117.5          18.5               13.7 +/-    1.22      31.4 +/-    1.22  0.040 / 0.040
G07     90.9           61.6               13.2 +/-    0.71      14.7 +/-    0.71  0.030 / 0.040
G08     43.9           28.7                9.1 +/-    2.32      16.3 +/-    2.32  0.220 / 0.350
G09     177.1          25.4               12.8 +/-    0.93      24.8 +/-    0.93  0.100 / 0.280
G11     102.8          40.9               12.9 +/-    0.81      18.4 +/-    0.81  0.050 / 0.070
G13     316.7          21.2               10.7 +/-    1.82      23.0 +/-    1.82  0.060 / 0.070
G17     200.9          27.5               14.1 +/-    1.55      26.0 +/-    1.55  0.110 / 0.160
G18     89.5           21.0               12.6 +/-    2.00      27.0 +/-    2.00  0.100 / 0.150
G28     289.5          55.6               12.2 +/-    2.13      14.4 +/-    2.13  0.100 / 0.230
G30     349.8          70.2               11.6 +/-    0.80      12.3 +/-    0.80  0.090 / 0.210