PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-23:12:50
G01     319.9          16.0                7.7 +/-    4.92      18.7 +/-    4.92  0.220 / 0.330
G08     257.8          14.4               17.7 +/-    2.44      44.6 +/-    2.44  0.150 / 0.290
G10     76.3           54.1               14.2 +/-    0.38      17.1 +/-    0.38  0.210 / 0.370
G11     304.3          22.6               10.4 +/-    1.08      21.5 +/-    1.08  0.190 / 0.320
G14     288.6          69.9               15.7 +/-    0.72      16.6 +/-    0.72  0.080 / 0.210
G18     305.9          39.9               13.0 +/-    0.93      19.0 +/-    0.93  0.120 / 0.200
G20     103.3          30.8               16.2 +/-    1.01      27.9 +/-    1.01  0.040 / 0.050
G27     226.8          10.6               22.7 +/-    4.98      62.4 +/-    4.98  0.040 / 0.050
G31     176.7          39.3               21.6 +/-    1.04      31.9 +/-    1.04  0.120 / 0.310
G32     4.6            68.7               15.2 +/-    0.41      16.2 +/-    0.41  0.130 / 0.290