PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-22:42:40
G01     228.6          21.6               11.3 +/-    2.52      23.8 +/-    2.52  0.030 / 0.030
G03     303.0          61.8                6.7 +/-    0.69       7.5 +/-    0.69  0.040 / 0.030
G14     77.3           32.5                7.8 +/-    1.25      12.9 +/-    1.25  0.080 / 0.150
G16     149.3          38.6                9.6 +/-    1.24      14.3 +/-    1.24  0.090 / 0.140
G22     244.3          74.2                8.9 +/-    0.63       9.2 +/-    0.63  0.040 / 0.040
G23     302.2          32.7                7.9 +/-    1.35      13.2 +/-    1.35  0.030 / 0.040
G26     109.5          52.1                9.1 +/-    0.39      11.1 +/-    0.39  0.060 / 0.100
G31     43.4           37.8                6.6 +/-    1.00      10.0 +/-    1.00  0.060 / 0.090