PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-01:58:10
G07     43.4           69.9                4.5 +/-    0.83       4.7 +/-    0.83  0.060 / 0.040
G08     51.9           40.3                2.9 +/-    1.25       4.2 +/-    1.25  0.050 / 0.050
G09     174.2          34.6                7.3 +/-    1.75      11.7 +/-    1.75  0.070 / 0.060
G11     126.1          34.4                6.8 +/-    1.42      10.8 +/-    1.42  0.070 / 0.060
G13     321.2          10.8               -7.0 +/-    7.84     -19.3 +/-    7.84  0.070 / 0.150
G17     198.6          12.8                4.6 +/-    6.12      11.9 +/-    6.12  0.050 / 0.110
G23     161.0          11.1                4.7 +/-   12.28      12.7 +/-   12.28  0.090 / 0.130
G28     263.9          43.8                4.8 +/-    3.04       6.6 +/-    3.04  0.110 / 0.120
G30     324.8          54.9                3.8 +/-    0.63       4.6 +/-    0.63  0.300 / 0.720