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                7.9 +/-    2.80      11.7 +/-    2.80  0.060 / 0.080
G03     311.6          18.1                6.0 +/-    1.27      13.8 +/-    1.27  0.050 / 0.090
G10     117.4          31.3               12.4 +/-    0.59      21.2 +/-    0.59  0.060 / 0.140
G11     271.8          26.1                8.3 +/-    1.34      15.8 +/-    1.34  0.060 / 0.120
G14     16.3           61.5                7.4 +/-    0.38       8.3 +/-    0.38  0.020 / 0.030
G22     313.6          37.8                7.8 +/-    0.92      11.8 +/-    0.92  0.020 / 0.030
G25     70.5           19.0                9.1 +/-    0.62      20.5 +/-    0.62  0.040 / 0.070
G26     157.6          11.4               12.4 +/-   30.93      33.6 +/-   30.93  0.040 / 0.050
G31     137.4          77.4               11.5 +/-    0.75      11.7 +/-    0.75  0.100 / 0.170
G32     49.1           43.2                7.4 +/-    0.54      10.2 +/-    0.54  0.110 / 0.180