PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-17:43:00
G02     248.7          76.0               10.2 +/-    0.87      10.5 +/-    0.87  0.050 / 0.250
G05     170.8          18.8               11.8 +/-    2.09      26.7 +/-    2.09  0.050 / 0.220
G06     40.5           52.8                7.9 +/-    0.68       9.6 +/-    0.68  0.030 / 0.040
G12     322.5          60.0                8.1 +/-    1.57       9.2 +/-    1.57  0.040 / 0.040
G17     74.2           19.4                9.1 +/-    1.28      20.3 +/-    1.28  0.180 / 0.370
G19     57.9           39.3                8.8 +/-    0.98      12.9 +/-    0.98  0.120 / 0.310
G24     239.9          32.6               12.7 +/-    1.41      21.2 +/-    1.41  0.030 / 0.040
G25     317.2          15.8                7.8 +/-    3.15      19.1 +/-    3.15  0.030 / 0.040