PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-19:42:50
G05     48.1           18.8                8.6 +/-    1.72      19.5 +/-    1.72  0.040 / 0.080
G10     235.4          13.4               14.0 +/-    3.09      36.1 +/-    3.09  0.050 / 0.100
G13     75.7           35.3               11.0 +/-    0.83      17.3 +/-    0.83  0.150 / 0.420
G15     127.1          51.8               12.6 +/-    0.74      15.6 +/-    0.74  0.190 / 0.450
G16     314.6          12.3                8.5 +/-    3.09      22.6 +/-    3.09  0.130 / 0.430
G20     247.9          37.0               13.3 +/-    1.15      20.4 +/-    1.15  0.120 / 0.430
G21     312.2          45.6               11.4 +/-    0.75      15.2 +/-    0.75  0.110 / 0.140
G25     200.4          12.5               13.8 +/-    2.15      36.5 +/-    2.15  0.070 / 0.200
G26     288.4          20.2               10.2 +/-    1.67      22.2 +/-    1.67  0.030 / 0.030
G29     152.0          73.9               11.7 +/-    0.79      12.1 +/-    0.79  0.030 / 0.030