PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-23:12:50
G07     50.5           68.4                9.5 +/-    0.89      10.2 +/-    0.89  0.110 / 0.140
G08     52.5           40.7                7.6 +/-    1.04      11.0 +/-    1.04  0.090 / 0.130
G09     178.3          40.6               10.0 +/-    1.11      14.3 +/-    1.11  0.130 / 0.320
G11     120.6          33.5               11.1 +/-    1.23      18.1 +/-    1.23  0.160 / 0.260
G17     198.4          12.8               10.4 +/-    1.71      27.4 +/-    1.71  0.030 / 0.030
G18     103.5          14.6               10.5 +/-    1.41      26.3 +/-    1.41  0.030 / 0.040
G23     161.3          13.2                9.7 +/-    2.71      25.2 +/-    2.71  0.080 / 0.350
G27     38.6           12.9                6.4 +/-    2.64      16.6 +/-    2.64  0.170 / 0.180
G28     266.8          48.0                9.1 +/-    3.14      11.7 +/-    3.14  0.070 / 0.050
G30     327.5          56.8                8.6 +/-    0.53      10.0 +/-    0.53  0.060 / 0.060