PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-18:57:50
G03     188.8          19.3               14.7 +/-    3.52      32.9 +/-    3.52  0.130 / 0.360
G07     293.7          41.6               10.4 +/-    0.99      14.8 +/-    0.99  0.140 / 0.320
G08     139.4          28.8               17.1 +/-    0.91      30.8 +/-    0.91  0.060 / 0.090
G09     320.4          62.6               10.9 +/-    0.64      12.1 +/-    0.64  0.060 / 0.070
G16     43.9           43.5                1.7 +/-    0.66       2.3 +/-    0.66  0.180 / 0.270
G23     112.4          80.6               12.3 +/-    1.43      12.5 +/-    1.43  0.130 / 0.250
G26     43.9           15.4                8.3 +/-    1.73      20.4 +/-    1.73  0.040 / 0.030
G27     102.1          33.8               14.6 +/-    0.41      23.7 +/-    0.41  0.030 / 0.040
G30     274.1          13.0               10.6 +/-    4.66      27.6 +/-    4.66  0.040 / 0.080