PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-16:27:50
G02     84.5           12.2               16.2 +/-    1.84      43.1 +/-    1.84  0.040 / 0.070
G05     44.7           34.0               11.9 +/-    0.81      19.3 +/-    0.81  0.040 / 0.070
G13     100.2          33.7               18.0 +/-    0.82      29.3 +/-    0.82  0.040 / 0.050
G15     143.3          38.6               20.9 +/-    0.85      31.2 +/-    0.85  0.040 / 0.050
G18     231.6          28.8               16.7 +/-    2.16      30.0 +/-    2.16  0.130 / 0.380
G20     335.6          84.1               16.5 +/-    0.65      16.6 +/-    0.65  0.140 / 0.350
G21     299.0          38.8               13.7 +/-    2.03      20.3 +/-    2.03  0.070 / 0.120
G25     207.9          24.8               16.7 +/-    1.11      32.8 +/-    1.11  0.060 / 0.100
G26     308.7          16.2                7.2 +/-    3.69      17.4 +/-    3.69  0.150 / 0.220
G29     103.1          83.9               16.6 +/-    0.34      16.7 +/-    0.34  0.130 / 0.240