PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-10:42:30
G01     39.2           13.3                2.0 +/-    2.80       5.3 +/-    2.80  0.080 / 0.170
G06     173.2          44.1                8.6 +/-    1.10      11.7 +/-    1.10  0.090 / 0.180
G13     233.9          19.4                4.6 +/-    2.82      10.4 +/-    2.82  0.230 / 0.170
G17     13.4           65.7                4.5 +/-    0.49       4.9 +/-    0.49  0.120 / 0.170
G19     280.7          67.9                5.3 +/-    0.63       5.7 +/-    0.63  0.170 / 0.300
G24     313.7          25.4                3.4 +/-    1.13       6.5 +/-    1.13  0.110 / 0.350
G28     75.7           45.8                4.9 +/-    1.21       6.5 +/-    1.21  0.070 / 0.040
G30     156.2          25.1                7.2 +/-    1.98      14.0 +/-    1.98  0.070 / 0.040