PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-12:12:50
G02     57.6           34.3                6.9 +/-    0.80      11.1 +/-    0.80  0.060 / 0.080
G05     63.4           64.7                7.9 +/-    0.54       8.6 +/-    0.54  0.060 / 0.080
G12     185.3          35.4                8.3 +/-    2.05      13.1 +/-    2.05  0.110 / 0.280
G13     129.3          13.7               10.0 +/-    1.53      25.8 +/-    1.53  0.140 / 0.200
G15     166.1          10.0               -9.0 +/-    8.97     -25.0 +/-    8.97  0.040 / 0.060
G21     270.8          18.4                6.2 +/-    2.89      14.3 +/-    2.89  0.040 / 0.050
G25     229.6          52.3               24.9 +/-    1.03      30.5 +/-    1.03  0.030 / 0.040
G29     328.3          53.7                4.3 +/-    0.80       5.2 +/-    0.80  0.030 / 0.040