PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-17:42:40
G02     70.3           25.7                8.8 +/-    1.16      16.9 +/-    1.16  0.080 / 0.090
G05     46.6           50.4                8.0 +/-    0.63      10.0 +/-    0.63  0.080 / 0.090
G12     180.0          15.6               10.8 +/-    2.23      26.4 +/-    2.23  0.180 / 0.200
G13     114.6          25.2               10.1 +/-    1.14      19.6 +/-    1.14  0.150 / 0.270
G15     159.5          22.5               12.3 +/-    1.44      25.5 +/-    1.44  0.080 / 0.190
G20     226.0          10.3               -7.1 +/-   16.42     -19.6 +/-   16.42  0.080 / 0.220
G21     284.2          26.7                9.8 +/-    2.43      18.4 +/-    2.43  0.030 / 0.050
G25     216.4          38.4               11.1 +/-    1.57      16.6 +/-    1.57  0.030 / 0.040
G26     317.6          11.9                7.1 +/-    2.43      19.0 +/-    2.43  0.080 / 0.220
G29     338.8          69.3                9.5 +/-    0.69      10.1 +/-    0.69  0.080 / 0.160