PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-15:57:40
G10     283.1          46.7                9.7 +/-    1.24      12.8 +/-    1.24  0.040 / 0.060
G15     49.7           39.0                8.3 +/-    0.91      12.2 +/-    0.91  0.050 / 0.060
G20     326.9          64.7               10.5 +/-    0.56      11.5 +/-    0.56  0.050 / 0.050
G21     63.5           75.9               11.6 +/-    0.76      11.9 +/-    0.76  0.050 / 0.040
G24     103.6          21.7               16.4 +/-    0.62      34.6 +/-    0.62  0.100 / 0.160
G27     312.1          26.6                7.8 +/-    1.90      14.6 +/-    1.90  0.090 / 0.200
G29     167.7          16.4               11.4 +/-    1.28      27.5 +/-    1.28  0.080 / 0.140
G32     207.0          20.9               10.9 +/-    2.02      23.4 +/-    2.02  0.080 / 0.110