PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-23:12:30
G02     209.6          52.2               19.7 +/-    1.16      24.2 +/-    1.16  0.090 / 0.130
G06     93.6           79.2               17.2 +/-    0.81      17.5 +/-    0.81  0.060 / 0.120
G12     315.5          28.5               14.0 +/-    2.02      25.3 +/-    2.02  0.030 / 0.060
G17     47.5           41.1               14.9 +/-    1.00      21.3 +/-    1.00  0.030 / 0.040
G19     26.7           55.8               15.1 +/-    1.18      17.9 +/-    1.18  0.100 / 0.160
G24     277.4          42.4               16.9 +/-    1.50      23.7 +/-    1.50  0.090 / 0.180
G28     116.6          19.8               19.4 +/-    1.59      42.9 +/-    1.59  0.060 / 0.080