PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-14:43:00
G01     289.1          40.4                2.9 +/-    2.37       4.1 +/-    2.37  0.040 / 0.050
G03     313.3          22.6                9.5 +/-    1.76      19.6 +/-    1.76  0.050 / 0.050
G10     120.9          27.9               11.5 +/-    0.54      21.1 +/-    0.54  0.030 / 0.070
G11     266.6          25.2                6.0 +/-    3.57      11.7 +/-    3.57  0.050 / 0.070
G14     22.4           59.4                8.9 +/-    0.88      10.2 +/-    0.88  0.080 / 0.110
G22     314.5          42.6                8.4 +/-    0.80      11.7 +/-    0.80  0.130 / 0.120
G25     66.1           19.2               10.1 +/-    0.99      22.7 +/-    0.99  0.050 / 0.090
G31     111.7          79.4                9.8 +/-    0.67       9.9 +/-    0.67  0.060 / 0.070
G32     53.3           40.0                8.1 +/-    1.31      11.8 +/-    1.31  0.050 / 0.100