PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/08-16:28:00
G03     203.8          51.6               10.7 +/-    0.62      13.2 +/-    0.62  0.070 / 0.110
G07     260.6          17.7               12.8 +/-    1.20      29.9 +/-    1.20  0.070 / 0.090
G09     312.4          31.3               10.0 +/-    1.10      17.0 +/-    1.10  0.030 / 0.040
G16     81.0           63.6               10.8 +/-    0.56      11.9 +/-    0.56  0.030 / 0.040
G22     183.5          33.8               10.0 +/-    1.28      16.3 +/-    1.28  0.090 / 0.160
G23     340.9          67.2                9.1 +/-    0.72       9.8 +/-    0.72  0.150 / 0.200
G26     49.3           38.1                9.6 +/-    1.25      14.5 +/-    1.25  0.040 / 0.040
G27     130.1          14.0               12.1 +/-    2.36      30.8 +/-    2.36  0.040 / 0.030