PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/28-16:12:50
G01     273.8          41.1                8.2 +/-    0.98      11.8 +/-    0.98  0.070 / 0.090
G03     315.9          31.3                9.3 +/-    2.50      15.8 +/-    2.50  0.080 / 0.120
G10     128.6          18.9                9.6 +/-    1.56      21.7 +/-    1.56  0.030 / 0.030
G11     255.8          21.3               10.1 +/-    5.74      21.5 +/-    5.74  0.020 / 0.030
G14     38.8           52.6                6.2 +/-    0.93       7.6 +/-    0.93  0.050 / 0.060
G22     314.5          51.9                7.3 +/-    0.80       9.0 +/-    0.80  0.050 / 0.060
G25     54.9           17.7                6.3 +/-    0.57      14.6 +/-    0.57  0.040 / 0.070
G26     148.4          23.7               11.7 +/-    1.83      23.5 +/-    1.83  0.040 / 0.060
G31     58.9           74.7                8.3 +/-    0.39       8.5 +/-    0.39  0.090 / 0.180
G32     63.0           33.0                6.9 +/-    1.08      11.4 +/-    1.08  0.090 / 0.220