PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-17:12:40
G10     268.3          39.3                8.4 +/-    0.79      12.3 +/-    0.79  0.040 / 0.030
G13     41.3           17.1                7.8 +/-    1.95      18.5 +/-    1.95  0.040 / 0.030
G15     59.8           50.2                7.5 +/-    0.79       9.4 +/-    0.79  0.240 / 0.510
G16     278.6          11.8                7.7 +/-    3.05      20.6 +/-    3.05  0.240 / 0.530
G20     299.9          60.8                8.1 +/-    0.79       9.1 +/-    0.79  0.140 / 0.280
G21     11.9           73.1                9.5 +/-    0.45       9.9 +/-    0.45  0.200 / 0.230
G24     115.7          15.3               10.2 +/-    1.68      25.2 +/-    1.68  0.150 / 0.300
G27     319.0          18.1                8.5 +/-    1.42      19.5 +/-    1.42  0.170 / 0.220
G29     167.4          29.5                8.4 +/-    1.06      14.9 +/-    1.06  0.030 / 0.040