PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-22:57:40
G02     298.8          81.6               11.2 +/-    1.06      11.3 +/-    1.06  0.020 / 0.030
G05     166.7          26.7               18.2 +/-    2.12      34.2 +/-    2.12  0.030 / 0.050
G06     40.4           46.7                9.5 +/-    0.42      12.5 +/-    0.42  0.080 / 0.160
G12     319.2          64.3               11.1 +/-    1.11      12.1 +/-    1.11  0.080 / 0.150
G17     78.8           18.1               10.1 +/-    1.34      23.4 +/-    1.34  0.060 / 0.130
G19     66.6           33.5               11.3 +/-    0.51      18.5 +/-    0.51  0.070 / 0.110
G24     234.4          28.0               18.4 +/-    1.26      33.6 +/-    1.26  0.030 / 0.030
G25     317.8          21.2               10.9 +/-    1.60      23.3 +/-    1.60  0.040 / 0.040