PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-19:57:50
G02     300.7          80.9               10.1 +/-    1.06      10.3 +/-    1.06  0.040 / 0.120
G05     166.7          27.8               14.5 +/-    1.28      26.6 +/-    1.28  0.050 / 0.090
G06     40.8           44.2                8.2 +/-    0.52      11.1 +/-    0.52  0.030 / 0.040
G12     318.0          68.4                7.5 +/-    1.34       8.0 +/-    1.34  0.030 / 0.030
G17     81.2           15.2                9.8 +/-    1.17      24.3 +/-    1.17  0.130 / 0.220
G19     67.7           33.2                9.8 +/-    0.80      16.2 +/-    0.80  0.150 / 0.210
G24     232.0          26.6               15.5 +/-    2.36      29.2 +/-    2.36  0.080 / 0.160
G25     317.7          23.6                7.7 +/-    1.87      15.5 +/-    1.87  0.070 / 0.150