PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/18-22:27:50
G07     51.5           68.3                9.3 +/-    0.44      10.0 +/-    0.44  0.030 / 0.030
G08     52.6           40.8                8.1 +/-    0.87      11.7 +/-    0.87  0.030 / 0.030
G09     178.6          40.9               11.3 +/-    1.05      16.2 +/-    1.05  0.060 / 0.080
G11     120.7          33.5               12.4 +/-    0.59      20.2 +/-    0.59  0.060 / 0.060
G17     198.4          12.6               15.6 +/-    2.58      41.0 +/-    2.58  0.100 / 0.180
G18     103.8          14.6               10.3 +/-    2.76      25.8 +/-    2.76  0.130 / 0.200
G23     161.3          13.0               12.1 +/-    1.78      31.6 +/-    1.78  0.110 / 0.110
G27     38.5           12.7                7.6 +/-    2.18      20.0 +/-    2.18  0.140 / 0.090
G28     266.6          47.9               10.0 +/-    3.35      12.9 +/-    3.35  0.100 / 0.340
G30     327.8          57.0                9.2 +/-    0.44      10.7 +/-    0.44  0.110 / 0.340