PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-01:58:10
G10     259.5          33.4               12.6 +/-    1.35      20.7 +/-    1.35  0.100 / 0.240
G13     45.9           23.7                8.8 +/-    2.37      17.8 +/-    2.37  0.110 / 0.300
G15     70.6           55.0               11.2 +/-    0.74      13.3 +/-    0.74  0.120 / 0.280
G16     284.7          14.3                9.1 +/-    0.96      22.9 +/-    0.96  0.140 / 0.360
G20     277.0          50.4               11.4 +/-    2.44      14.3 +/-    2.44  0.030 / 0.030
G21     346.2          66.5               11.1 +/-    0.42      11.9 +/-    0.42  0.040 / 0.040
G24     125.3          10.0              -11.8 +/-   30.11     -32.9 +/-   30.11  0.070 / 0.060
G26     257.5          11.3               12.6 +/-    4.92      34.1 +/-    4.92  0.060 / 0.070
G27     321.3          13.0                5.2 +/-   15.83      13.6 +/-   15.83  0.060 / 0.150
G29     167.4          40.0               12.5 +/-    1.27      18.2 +/-    1.27  0.080 / 0.240