PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-01:13:10
G10     258.7          34.1               13.1 +/-    2.21      21.1 +/-    2.21  0.040 / 0.060
G13     46.2           23.4                8.6 +/-    0.95      17.3 +/-    0.95  0.050 / 0.050
G15     69.2           53.6               11.3 +/-    0.42      13.6 +/-    0.42  0.170 / 0.310
G16     288.3          14.4                7.7 +/-    1.43      19.3 +/-    1.43  0.160 / 0.340
G20     282.8          55.9               13.5 +/-    0.85      15.9 +/-    0.85  0.060 / 0.110
G21     346.2          65.9                8.2 +/-    1.21       8.9 +/-    1.21  0.090 / 0.100
G26     261.0          11.8               11.7 +/-    1.58      31.4 +/-    1.58  0.090 / 0.300
G27     322.0          11.3               -5.2 +/-   34.52     -14.2 +/-   34.52  0.090 / 0.280
G29     165.1          39.0               14.2 +/-    1.82      21.0 +/-    1.82  0.070 / 0.220