PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-16:27:50
G10     271.4          40.1                9.9 +/-    1.21      14.3 +/-    1.21  0.100 / 0.130
G13     40.6           16.1                6.3 +/-    2.52      15.2 +/-    2.52  0.070 / 0.110
G15     54.3           44.1                6.9 +/-    0.68       9.4 +/-    0.68  0.040 / 0.040
G18     314.7          66.5                7.9 +/-    1.15       8.6 +/-    1.15  0.040 / 0.040
G20     56.3           33.9                4.7 +/-    0.92       7.6 +/-    0.92  0.100 / 0.210
G21     35.9           74.9                8.4 +/-    0.37       8.6 +/-    0.37  0.100 / 0.230
G24     117.9          16.4                9.9 +/-    1.19      23.7 +/-    1.19  0.040 / 0.090
G27     315.7          23.2                4.5 +/-    1.80       9.2 +/-    1.80  0.040 / 0.110
G29     166.5          22.7               11.0 +/-    1.43      22.8 +/-    1.43  0.100 / 0.250
G32     205.4          12.2              -13.1 +/-   30.86     -34.9 +/-   30.86  0.100 / 0.250