PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-19:43:00
G07     27.0           67.9               13.7 +/-    0.91      14.7 +/-    0.91  0.030 / 0.030
G08     63.8           47.7               13.0 +/-    1.44      16.9 +/-    1.44  0.030 / 0.030
G09     180.8          52.4               16.2 +/-    1.06      19.8 +/-    1.06  0.070 / 0.110
G11     129.9          27.4               15.3 +/-    0.81      28.3 +/-    0.81  0.070 / 0.180
G18     113.1          9.5                -8.3 +/-   18.69     -23.3 +/-   18.69  0.040 / 0.050
G23     160.3          21.9               14.8 +/-    0.73      31.1 +/-    0.73  0.040 / 0.040
G27     42.0           20.1               10.5 +/-    2.22      23.1 +/-    2.22  0.140 / 0.210
G28     254.3          40.9               15.9 +/-    3.20      22.9 +/-    3.20  0.160 / 0.220
G30     319.3          50.2               12.4 +/-    0.67      15.6 +/-    0.67  0.040 / 0.050