PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-18:12:50
G02     1.5            73.3                9.2 +/-    0.47       9.5 +/-    0.47  0.050 / 0.060
G05     160.2          42.5               12.8 +/-    0.79      17.9 +/-    0.79  0.050 / 0.060
G06     45.1           29.8                7.9 +/-    1.34      14.0 +/-    1.34  0.200 / 0.270
G12     257.7          82.0               10.1 +/-    1.51      10.2 +/-    1.51  0.170 / 0.240
G19     81.7           24.6               10.3 +/-    1.80      20.3 +/-    1.80  0.080 / 0.090
G24     220.0          15.7               15.5 +/-    2.13      37.8 +/-    2.13  0.050 / 0.100
G25     314.4          38.2                8.8 +/-    1.03      13.1 +/-    1.03  0.030 / 0.020
G29     292.3          13.2               11.1 +/-    2.46      28.8 +/-    2.46  0.030 / 0.030