PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/27-15:42:40
G01     294.5          39.1                7.1 +/-    3.56      10.5 +/-    3.56  0.050 / 0.120
G03     311.6          18.1                6.6 +/-    2.49      15.2 +/-    2.49  0.050 / 0.070
G10     117.4          31.3               10.1 +/-    0.62      17.2 +/-    0.62  0.050 / 0.050
G11     271.8          26.1                7.3 +/-    1.36      14.0 +/-    1.36  0.050 / 0.040
G14     16.3           61.5                7.7 +/-    0.84       8.6 +/-    0.84  0.100 / 0.140
G22     313.6          37.8                6.8 +/-    1.43      10.2 +/-    1.43  0.060 / 0.140
G25     70.5           19.0                8.8 +/-    1.28      19.8 +/-    1.28  0.020 / 0.020
G26     157.6          11.4                9.3 +/-   24.33      25.2 +/-   24.33  0.020 / 0.020
G31     137.4          77.4               11.2 +/-    0.55      11.5 +/-    0.55  0.130 / 0.150
G32     49.1           43.2                7.5 +/-    0.96      10.4 +/-    0.96  0.100 / 0.150