PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-21:43:00
G01     83.5           33.0               11.1 +/-    2.19      18.3 +/-    2.19  0.310 / 0.300
G07     130.3          41.0                9.6 +/-    0.98      13.8 +/-    0.98  0.340 / 0.440
G11     64.3           38.5                9.1 +/-    1.01      13.6 +/-    1.01  0.100 / 0.100
G13     288.3          37.1               10.5 +/-    0.74      16.1 +/-    0.74  0.090 / 0.110
G15     311.1          12.5                8.2 +/-    1.89      21.7 +/-    1.89  0.160 / 0.280
G17     219.8          54.6               11.4 +/-    1.14      13.7 +/-    1.14  0.200 / 0.280
G18     58.8           22.7                9.2 +/-    1.80      19.0 +/-    1.80  0.060 / 0.050
G19     217.5          31.7               11.2 +/-    2.24      19.0 +/-    2.24  0.040 / 0.030
G28     1.1            61.1                9.1 +/-    0.59      10.2 +/-    0.59  0.130 / 0.090
G30     120.8          69.4               10.5 +/-    0.44      11.1 +/-    0.44  0.060 / 0.060