PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-21:58:00
G01     93.3           31.1               12.4 +/-    1.23      21.3 +/-    1.23  0.410 / 0.520
G07     122.9          48.3               14.4 +/-    0.45      18.5 +/-    0.45  0.210 / 0.610
G08     42.4           13.7                9.0 +/-    5.16      23.2 +/-    5.16  0.190 / 0.160
G11     74.3           42.0               11.1 +/-    1.31      15.6 +/-    1.31  0.100 / 0.130
G13     298.0          34.7               10.6 +/-    3.03      16.9 +/-    3.03  0.100 / 0.070
G17     213.5          46.9               12.7 +/-    0.53      16.7 +/-    0.53  0.050 / 0.070
G18     67.1           24.5               11.5 +/-    1.14      22.8 +/-    1.14  0.050 / 0.060
G19     213.5          24.2               15.4 +/-    2.81      30.7 +/-    2.81  0.040 / 0.030
G28     344.9          61.8                9.3 +/-    0.58      10.3 +/-    0.58  0.150 / 0.210
G30     99.6           75.5               10.8 +/-    0.87      11.1 +/-    0.87  0.110 / 0.190