PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/07-15:28:00
G02     3.3            74.1               10.1 +/-    0.61      10.5 +/-    0.61  0.180 / 0.360
G05     164.6          38.0               11.0 +/-    0.72      16.5 +/-    0.72  0.170 / 0.390
G06     43.3           35.9                7.0 +/-    1.23      11.0 +/-    1.23  0.050 / 0.100
G12     295.1          76.4                9.0 +/-    1.42       9.3 +/-    1.42  0.050 / 0.090
G19     82.3           21.7                8.3 +/-    2.37      17.6 +/-    2.37  0.020 / 0.030
G24     224.8          18.5               10.6 +/-    2.19      24.2 +/-    2.19  0.030 / 0.030
G25     315.2          37.4               11.3 +/-    0.85      17.2 +/-    0.85  0.050 / 0.060
G29     293.2          16.8                7.5 +/-    2.30      17.9 +/-    2.30  0.050 / 0.060