PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-01:43:10
G10     300.7          53.5                8.1 +/-    1.43       9.9 +/-    1.43  0.070 / 0.090
G14     210.2          12.3                3.0 +/-   23.02       8.0 +/-   23.02  0.070 / 0.070
G15     45.9           26.3                6.1 +/-    1.96      11.5 +/-    1.96  0.070 / 0.050
G20     354.6          65.1                8.9 +/-    0.46       9.7 +/-    0.46  0.080 / 0.050
G21     98.8           73.8                9.6 +/-    0.45       9.9 +/-    0.45  0.040 / 0.030
G24     96.9           27.0                7.2 +/-    1.41      13.5 +/-    1.41  0.040 / 0.030
G27     300.1          34.5                8.4 +/-    1.21      13.5 +/-    1.21  0.100 / 0.560
G32     211.0          31.6                9.6 +/-    1.33      16.2 +/-    1.33  0.100 / 0.560