PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-03:57:40
G10     289.0          49.5                9.2 +/-    1.14      11.7 +/-    1.14  0.040 / 0.040
G15     47.4           32.9                5.3 +/-    0.83       8.7 +/-    0.83  0.030 / 0.040
G20     336.4          65.1                7.7 +/-    0.52       8.4 +/-    0.52  0.060 / 0.110
G21     70.8           76.6                7.7 +/-    0.37       7.9 +/-    0.37  0.070 / 0.080
G24     104.5          23.7                6.8 +/-    1.98      13.7 +/-    1.98  0.060 / 0.060
G27     308.1          30.2                8.1 +/-    2.65      14.1 +/-    2.65  0.050 / 0.050
G29     167.0          11.9                5.6 +/-    2.71      15.1 +/-    2.71  0.080 / 0.190
G32     208.5          22.7               10.7 +/-    0.88      22.1 +/-    0.88  0.070 / 0.180