PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-04:42:40
G08     284.1700       23.2407          5.0575 +/-  1.8074   10.2946 +/-  1.8074  0.050 / 0.010
G10     20.5944        63.2362          1.6178 +/-  0.4116    1.7890 +/-  0.4116  0.040 / 0.010
G14     237.8484       54.4122          4.8003 +/-  1.1061    5.7552 +/-  1.1061  0.050 / 0.120
G18     70.2073        49.0546          3.4555 +/-  0.7797    4.4095 +/-  0.7797  0.060 / 0.120
G21     149.2130       33.5771          5.5124 +/-  0.8134    8.9864 +/-  0.8134  0.100 / 0.040
G24     51.1997        23.2761          4.7636 +/-  1.2071    9.6884 +/-  1.2071  0.100 / 0.080
G27     245.5681       27.3893          5.3468 +/-  2.0071    9.9014 +/-  2.0071  0.030 / 0.010
G31     181.9532       12.7937          6.1227 +/-  1.4101   16.0512 +/-  1.4101  0.030 / 0.010
G32     263.3741       72.2907          2.1671 +/-  0.6291    2.2632 +/-  0.6291  0.100 / 0.110