PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-17:57:40
G10     261.7          34.2               11.2 +/-    1.49      18.1 +/-    1.49  0.150 / 0.250
G13     45.2           23.3                8.8 +/-    1.69      17.9 +/-    1.69  0.120 / 0.230
G15     64.3           51.3               11.5 +/-    0.29      14.3 +/-    0.29  0.100 / 0.530
G16     289.7          12.1                6.6 +/-    3.23      17.5 +/-    3.23  0.110 / 0.510
G18     292.7          63.4               10.6 +/-    0.54      11.7 +/-    0.54  0.040 / 0.070
G20     50.3           40.0                9.4 +/-    0.40      13.6 +/-    0.40  0.040 / 0.090
G21     2.0            70.6               12.3 +/-    0.77      13.0 +/-    0.77  0.040 / 0.050
G26     260.6          10.2                9.2 +/-    1.85      25.4 +/-    1.85  0.040 / 0.050
G27     320.0          16.2                8.4 +/-    1.06      20.2 +/-    1.06  0.070 / 0.220
G29     164.8          30.9               14.0 +/-    1.25      24.0 +/-    1.25  0.070 / 0.220