PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-18:42:30
G02     64.8           30.3               12.8 +/-    1.72      22.3 +/-    1.72  0.110 / 0.260
G05     49.8           55.3               13.3 +/-    0.38      15.8 +/-    0.38  0.080 / 0.240
G12     180.6          20.7               16.7 +/-    0.85      36.1 +/-    0.85  0.030 / 0.040
G13     120.2          21.3               16.6 +/-    0.99      35.3 +/-    0.99  0.030 / 0.040
G15     163.5          16.9               17.4 +/-    1.38      41.2 +/-    1.38  0.060 / 0.150
G21     278.9          22.7               15.9 +/-    1.64      32.7 +/-    1.64  0.050 / 0.190
G25     222.5          44.1               16.4 +/-    0.47      22.3 +/-    0.47  0.070 / 0.160
G29     333.8          62.8               14.6 +/-    0.61      16.2 +/-    0.61  0.070 / 0.230