PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-17:27:50
G01     288.2          40.5                6.1 +/-    1.46       8.8 +/-    1.46  0.030 / 0.020
G03     313.0          20.9                6.6 +/-    4.42      14.1 +/-    4.42  0.030 / 0.030
G10     121.3          27.5                8.0 +/-    1.41      14.7 +/-    1.41  0.050 / 0.090
G11     265.5          25.2                9.3 +/-    1.70      18.1 +/-    1.70  0.040 / 0.090
G14     25.4           58.3                5.6 +/-    0.52       6.5 +/-    0.52  0.050 / 0.060
G22     314.3          41.1                6.3 +/-    1.85       9.0 +/-    1.85  0.070 / 0.050
G25     65.2           19.1                7.3 +/-    0.61      16.4 +/-    0.61  0.060 / 0.120
G26     155.3          14.9               11.9 +/-    1.86      29.8 +/-    1.86  0.070 / 0.100
G31     114.9          79.8                8.1 +/-    0.70       8.2 +/-    0.70  0.060 / 0.130
G32     53.3           40.2                8.0 +/-    0.61      11.5 +/-    0.61  0.060 / 0.130