PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-21:42:20
G01     37.8           10.2               11.4 +/-    2.09      31.7 +/-    2.09  0.110 / 0.320
G02     199.5          16.4               22.2 +/-    0.94      53.4 +/-    0.94  0.090 / 0.310
G06     172.1          48.7               16.7 +/-    1.11      21.4 +/-    1.11  0.140 / 0.360
G13     231.3          16.6               16.9 +/-    2.07      40.5 +/-    2.07  0.070 / 0.170
G17     8.2            66.4               13.3 +/-    0.72      14.4 +/-    0.72  0.060 / 0.190
G19     300.6          70.7               13.4 +/-    0.88      14.1 +/-    0.88  0.040 / 0.080
G24     313.1          25.8               11.8 +/-    4.25      22.6 +/-    4.25  0.050 / 0.090
G28     82.2           42.4               14.7 +/-    0.53      20.5 +/-    0.53  0.070 / 0.140
G30     156.1          18.6               20.1 +/-    2.85      45.8 +/-    2.85  0.070 / 0.190