PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-00:13:00
G01     40.3           15.0                8.1 +/-    1.63      20.1 +/-    1.63  0.100 / 0.340
G02     198.8          11.4                9.0 +/-   15.89      24.4 +/-   15.89  0.090 / 0.260
G06     174.9          41.0               13.4 +/-    0.81      19.1 +/-    0.81  0.030 / 0.040
G13     236.5          20.7               12.3 +/-    2.13      26.7 +/-    2.13  0.020 / 0.040
G15     268.7          11.7               10.7 +/-    2.15      28.7 +/-    2.15  0.040 / 0.040
G17     355.7          71.0                9.1 +/-    0.79       9.5 +/-    0.79  0.030 / 0.040
G19     282.9          69.6               10.1 +/-    0.35      10.7 +/-    0.35  0.060 / 0.060
G24     316.0          20.6                8.0 +/-    2.65      17.4 +/-    2.65  0.050 / 0.070
G28     74.8           45.5                9.6 +/-    0.64      12.9 +/-    0.64  0.260 / 0.430
G30     154.4          23.3               12.4 +/-    1.23      25.3 +/-    1.23  0.220 / 0.300