PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/14-20:27:50
G01     112.9          22.2               14.5 +/-    1.63      30.2 +/-    1.63  0.140 / 0.100
G07     95.7           63.0               15.2 +/-    0.47      16.8 +/-    0.47  0.110 / 0.080
G08     43.7           29.4               12.1 +/-    0.97      21.4 +/-    0.97  0.100 / 0.060
G09     176.5          19.8               16.1 +/-    2.75      35.6 +/-    2.75  0.100 / 0.060
G11     99.9           42.3               14.2 +/-    0.66      19.9 +/-    0.66  0.030 / 0.010
G13     314.1          24.2               12.0 +/-    1.06      23.8 +/-    1.06  0.030 / 0.010
G17     205.0          27.4               16.0 +/-    1.02      29.6 +/-    1.02  0.040 / 0.020
G18     87.5           23.1               12.6 +/-    1.90      25.8 +/-    1.90  0.040 / 0.020
G28     306.7          59.8               13.8 +/-    0.77      15.7 +/-    0.77  0.110 / 0.150
G30     9.4            75.1               14.8 +/-    0.66      15.3 +/-    0.66  0.100 / 0.180