PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-01:57:40
G10     266.6          37.9               13.9 +/-    1.13      21.0 +/-    1.13  0.130 / 0.170
G13     42.1           18.6                9.3 +/-    0.44      21.1 +/-    0.44  0.130 / 0.150
G15     61.1           50.8               11.4 +/-    0.75      14.3 +/-    0.75  0.160 / 0.400
G16     278.1          12.4               10.8 +/-    1.56      28.6 +/-    1.56  0.140 / 0.520
G20     284.5          52.5               12.1 +/-    0.42      14.9 +/-    0.42  0.070 / 0.080
G21     359.4          71.2               12.9 +/-    0.65      13.5 +/-    0.65  0.070 / 0.070
G24     119.7          14.1               13.4 +/-    1.79      34.0 +/-    1.79  0.040 / 0.050
G27     318.8          18.5                9.8 +/-    0.72      22.3 +/-    0.72  0.040 / 0.050
G29     168.3          32.5               15.3 +/-    0.87      25.4 +/-    0.87  0.170 / 0.320
G32     203.8          10.3              -11.8 +/-   39.41     -32.6 +/-   39.41  0.140 / 0.370