PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-00:13:00
G02     199.7          21.9               14.6 +/-    1.29      30.7 +/-    1.29  0.100 / 0.190
G06     171.4          53.4               13.5 +/-    0.80      16.3 +/-    0.80  0.230 / 0.220
G13     227.9          13.3               13.1 +/-    1.49      33.9 +/-    1.49  0.040 / 0.050
G17     15.0           63.0               10.7 +/-    0.69      11.8 +/-    0.69  0.040 / 0.040
G19     320.1          71.0               11.0 +/-    0.42      11.6 +/-    0.42  0.080 / 0.120
G24     310.4          29.1               10.0 +/-    1.48      17.8 +/-    1.48  0.070 / 0.100
G28     88.1           39.5               11.1 +/-    1.04      16.2 +/-    1.04  0.050 / 0.070
G30     156.4          13.0               12.9 +/-    1.27      33.8 +/-    1.27  0.040 / 0.100