PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-18:42:40
G07     35.5           68.1               11.3 +/-    0.77      12.1 +/-    0.77  0.100 / 0.140
G08     61.0           46.6               11.1 +/-    1.15      14.7 +/-    1.15  0.120 / 0.160
G09     180.5          49.8               12.8 +/-    0.82      16.2 +/-    0.82  0.030 / 0.030
G11     127.9          29.0               14.8 +/-    1.18      26.4 +/-    1.18  0.030 / 0.040
G18     111.4          10.8               13.3 +/-    3.34      36.4 +/-    3.34  0.050 / 0.050
G23     160.3          19.0               12.7 +/-    1.67      28.6 +/-    1.67  0.060 / 0.040
G27     40.8           18.0                8.8 +/-    1.51      20.4 +/-    1.51  0.040 / 0.060
G28     256.9          42.4               14.1 +/-    2.49      19.8 +/-    2.49  0.050 / 0.120
G30     322.2          52.5               11.0 +/-    0.81      13.5 +/-    0.81  0.180 / 0.340