PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-23:27:50
G01     266.1          42.0                8.9 +/-    1.19      12.5 +/-    1.19  0.040 / 0.070
G03     316.0          29.3                7.0 +/-    2.07      12.4 +/-    2.07  0.050 / 0.050
G10     130.2          14.0               11.8 +/-    1.75      30.1 +/-    1.75  0.120 / 0.280
G11     251.8          18.5               10.5 +/-    1.60      24.1 +/-    1.60  0.110 / 0.250
G14     40.3           52.1                7.0 +/-    0.56       8.7 +/-    0.56  0.050 / 0.070
G22     313.9          51.2                7.4 +/-    0.95       9.2 +/-    0.95  0.070 / 0.070
G25     52.2           16.3                4.9 +/-    1.00      11.9 +/-    1.00  0.050 / 0.090
G26     146.9          26.4               11.5 +/-    1.27      21.9 +/-    1.27  0.070 / 0.110
G31     53.5           71.5                8.4 +/-    0.68       8.8 +/-    0.68  0.090 / 0.120
G32     65.5           30.8                7.2 +/-    0.72      12.3 +/-    0.72  0.090 / 0.130