PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-16:12:30
G02     25.3           62.1               12.6 +/-    0.59      14.0 +/-    0.59  0.040 / 0.050
G05     155.6          53.0               15.3 +/-    0.75      18.6 +/-    0.75  0.050 / 0.050
G06     49.5           23.4               10.6 +/-    0.54      21.4 +/-    0.54  0.030 / 0.040
G12     218.9          75.7               12.7 +/-    1.03      13.1 +/-    1.03  0.030 / 0.050
G19     94.7           13.0               12.6 +/-    2.23      33.0 +/-    2.23  0.140 / 0.380
G20     197.8          18.7               13.6 +/-    1.56      30.8 +/-    1.56  0.110 / 0.440
G25     304.9          50.1               13.2 +/-    1.36      16.6 +/-    1.36  0.030 / 0.040
G29     304.0          26.4               11.5 +/-    1.75      21.8 +/-    1.75  0.030 / 0.040