PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-22:28:00
G02     292.8          81.4               11.9 +/-    0.69      12.0 +/-    0.69  0.030 / 0.040
G05     167.1          26.0               17.9 +/-    2.43      34.2 +/-    2.43  0.030 / 0.040
G06     40.3           47.2               11.5 +/-    0.38      15.0 +/-    0.38  0.080 / 0.130
G12     319.5          63.9               12.9 +/-    1.23      14.1 +/-    1.23  0.110 / 0.170
G17     78.4           18.2               11.6 +/-    0.81      26.7 +/-    0.81  0.100 / 0.150
G19     65.9           34.0               12.6 +/-    0.56      20.4 +/-    0.56  0.090 / 0.160
G24     234.8          28.4               17.2 +/-    0.95      31.2 +/-    0.95  0.040 / 0.150
G25     317.8          20.8               11.3 +/-    2.28      24.3 +/-    2.28  0.050 / 0.140