PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-19:28:00
G02     248.3          76.5               13.8 +/-    0.80      14.2 +/-    0.80  0.060 / 0.210
G05     170.6          18.7               16.2 +/-    2.18      36.7 +/-    2.18  0.060 / 0.270
G06     40.4           53.8               13.4 +/-    0.52      16.2 +/-    0.52  0.030 / 0.040
G12     322.2          58.1               11.8 +/-    0.93      13.7 +/-    0.93  0.040 / 0.050
G17     73.2           20.9               11.6 +/-    0.69      24.9 +/-    0.69  0.120 / 0.420
G19     57.8           39.2               12.1 +/-    0.63      17.8 +/-    0.63  0.220 / 0.420
G24     241.0          33.0               16.7 +/-    0.96      27.6 +/-    0.96  0.080 / 0.110
G25     317.1          14.9               10.7 +/-    3.49      26.6 +/-    3.49  0.070 / 0.120