PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-01:42:40
G02     203.3          38.9               12.0 +/-    1.19      17.8 +/-    1.19  0.310 / 0.250
G06     158.0          71.2               10.3 +/-    0.41      10.8 +/-    0.41  0.210 / 0.270
G12     308.7          16.4                6.3 +/-    2.24      15.1 +/-    2.24  0.120 / 0.110
G17     35.3           50.1                7.7 +/-    0.63       9.6 +/-    0.63  0.090 / 0.150
G19     5.9            63.9                7.5 +/-    0.56       8.3 +/-    0.56  0.030 / 0.040
G24     295.7          38.9                7.8 +/-    2.95      11.5 +/-    2.95  0.040 / 0.040
G28     105.2          29.1                9.6 +/-    0.88      17.1 +/-    0.88  0.050 / 0.030