PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-01:28:10
G02     210.7          55.3               14.3 +/-    0.80      17.0 +/-    0.80  0.090 / 0.130
G06     84.8           79.2               10.1 +/-    0.26      10.3 +/-    0.26  0.070 / 0.090
G12     316.1          29.7                8.6 +/-    0.65      15.1 +/-    0.65  0.090 / 0.150
G17     49.4           39.8                9.3 +/-    1.69      13.5 +/-    1.69  0.120 / 0.190
G19     30.9           53.8               10.0 +/-    1.29      12.1 +/-    1.29  0.040 / 0.030
G24     274.7          42.3               12.0 +/-    2.89      16.9 +/-    2.89  0.030 / 0.020
G28     118.4          17.9               10.2 +/-    0.62      23.5 +/-    0.62  0.070 / 0.080