PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-19:27:50
G01     272.0          41.0               10.1 +/-    2.49      14.5 +/-    2.49  0.060 / 0.050
G03     315.8          29.9                9.6 +/-    1.16      16.8 +/-    1.16  0.060 / 0.050
G10     129.3          18.1               10.7 +/-    1.46      24.7 +/-    1.46  0.030 / 0.020
G11     252.8          20.9                8.8 +/-    2.94      19.0 +/-    2.94  0.030 / 0.020
G14     41.9           50.9                9.3 +/-    0.79      11.6 +/-    0.79  0.130 / 0.120
G22     314.2          51.1                9.5 +/-    0.96      11.8 +/-    0.96  0.240 / 0.210
G25     53.3           17.2                9.3 +/-    2.61      22.0 +/-    2.61  0.050 / 0.070
G26     149.1          24.1               12.7 +/-    1.80      25.4 +/-    1.80  0.060 / 0.070
G31     57.8           75.3               10.3 +/-    0.39      10.6 +/-    0.39  0.050 / 0.060
G32     63.5           33.0                9.3 +/-    0.71      15.3 +/-    0.71  0.040 / 0.070