PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-18:12:50
G01     95.5           30.5               12.0 +/-    0.95      20.7 +/-    0.95  0.090 / 0.170
G07     120.9          49.9               13.4 +/-    0.59      17.0 +/-    0.59  0.100 / 0.190
G08     42.1           12.9                7.8 +/-    1.70      20.5 +/-    1.70  0.030 / 0.060
G11     75.0           41.8               12.6 +/-    0.70      17.8 +/-    0.70  0.030 / 0.060
G13     299.7          34.3               12.7 +/-    1.19      20.4 +/-    1.19  0.030 / 0.040
G17     212.0          46.3               15.2 +/-    1.03      20.2 +/-    1.03  0.030 / 0.030
G18     68.8           24.7               10.6 +/-    0.51      20.8 +/-    0.51  0.040 / 0.080
G19     212.9          21.3               14.1 +/-    2.41      30.0 +/-    2.41  0.050 / 0.070
G28     340.4          61.9               11.4 +/-    0.80      12.7 +/-    0.80  0.070 / 0.150
G30     86.6           78.3               12.9 +/-    0.74      13.1 +/-    0.74  0.090 / 0.160