PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-19:12:50
G08     314.3          16.3               12.6 +/-    2.38      30.3 +/-    2.38  0.050 / 0.090
G10     318.8          57.4               10.4 +/-    0.84      12.1 +/-    0.84  0.060 / 0.080
G14     215.1          25.5               15.0 +/-    3.54      29.0 +/-    3.54  0.090 / 0.470
G15     45.8           15.1               10.4 +/-    0.75      25.8 +/-    0.75  0.090 / 0.530
G18     29.8           61.4               11.7 +/-    0.59      13.1 +/-    0.59  0.030 / 0.040
G20     80.9           10.6               13.2 +/-    2.51      36.4 +/-    2.51  0.040 / 0.050
G21     127.4          58.8               14.2 +/-    0.78      16.3 +/-    0.78  0.070 / 0.110
G24     83.0           30.3               14.0 +/-    0.55      24.4 +/-    0.55  0.060 / 0.120
G27     281.6          38.1               11.1 +/-    0.88      16.7 +/-    0.88  0.030 / 0.060
G32     218.6          44.1               13.5 +/-    1.14      18.4 +/-    1.14  0.030 / 0.060