PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-23:58:10
G01     117.9          18.4               10.2 +/-    2.29      23.4 +/-    2.29  0.070 / 0.060
G07     89.0           62.8                9.4 +/-    0.58      10.4 +/-    0.58  0.070 / 0.060
G08     43.8           28.3                6.3 +/-    2.19      11.4 +/-    2.19  0.100 / 0.210
G09     176.5          24.8               10.8 +/-    2.36      21.1 +/-    2.36  0.090 / 0.210
G11     102.9          40.7                9.4 +/-    0.74      13.5 +/-    0.74  0.030 / 0.040
G13     316.9          20.9                6.8 +/-    1.98      14.5 +/-    1.98  0.030 / 0.040
G17     200.7          27.9               11.3 +/-    1.29      20.6 +/-    1.29  0.260 / 0.410
G18     88.6           20.7                9.0 +/-    1.76      19.4 +/-    1.76  0.130 / 0.440
G28     290.0          55.9                8.8 +/-    1.85      10.3 +/-    1.85  0.110 / 0.150
G30     347.2          69.3                8.0 +/-    0.84       8.4 +/-    0.84  0.110 / 0.120