PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-02:57:40
G01     112.2          20.6                8.7 +/-    1.30      18.8 +/-    1.30  0.030 / 0.030
G07     91.4           64.1                5.2 +/-    1.05       5.8 +/-    1.05  0.040 / 0.040
G08     43.0           26.1                3.9 +/-    0.61       7.3 +/-    0.61  0.080 / 0.200
G09     173.0          17.5                7.2 +/-    1.93      16.8 +/-    1.93  0.090 / 0.230
G11     105.5          43.6                7.3 +/-    0.46      10.1 +/-    0.46  0.040 / 0.090
G13     314.5          24.6                3.3 +/-    1.63       6.5 +/-    1.63  0.040 / 0.080
G17     201.7          30.0                7.8 +/-    1.04      13.6 +/-    1.04  0.030 / 0.040
G28     288.1          53.5                5.8 +/-    0.99       7.0 +/-    0.99  0.030 / 0.050
G30     345.0          70.0                3.4 +/-    0.86       3.6 +/-    0.86  0.040 / 0.060