PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-00:42:30
G07     315.6          51.2                4.0 +/-    0.93       5.0 +/-    0.93  0.080 / 0.170
G08     116.6          45.9                8.2 +/-    0.97      10.9 +/-    0.97  0.090 / 0.160
G09     200.7          83.1                4.7 +/-    0.84       4.7 +/-    0.84  0.050 / 0.090
G16     43.6           15.6                1.8 +/-    1.30       4.4 +/-    1.30  0.050 / 0.060
G23     150.1          56.2                6.2 +/-    0.50       7.3 +/-    0.50  0.190 / 0.510
G27     69.4           36.1                4.5 +/-    0.44       7.1 +/-    0.44  0.200 / 0.640
G28     227.1          10.8               -4.7 +/-   18.90     -13.0 +/-   18.90  0.030 / 0.050
G30     290.1          23.6                4.6 +/-    2.04       9.2 +/-    2.04  0.040 / 0.060