PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/16-21:28:00
G01     320.5          14.3                8.2 +/-    1.89      20.8 +/-    1.89  0.220 / 0.390
G08     264.9          16.7                9.4 +/-    6.90      22.5 +/-    6.90  0.220 / 0.320
G10     70.4           54.9                8.7 +/-    0.30      10.4 +/-    0.30  0.050 / 0.060
G11     310.4          17.6                9.6 +/-    1.76      22.3 +/-    1.76  0.040 / 0.070
G14     269.9          65.6                9.5 +/-    0.82      10.4 +/-    0.82  0.110 / 0.310
G20     100.4          32.0               10.4 +/-    0.93      17.4 +/-    0.93  0.200 / 0.280
G21     155.9          12.1               11.1 +/-    2.09      29.6 +/-    2.09  0.090 / 0.460
G27     228.7          13.6               14.3 +/-    4.62      36.7 +/-    4.62  0.110 / 0.410
G31     176.5          35.3               12.5 +/-    1.63      19.7 +/-    1.63  0.230 / 0.330
G32     355.1          71.8                9.3 +/-    0.42       9.7 +/-    0.42  0.200 / 0.460