PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/28-21:57:40
G01     228.5          21.6                9.2 +/-    3.53      19.4 +/-    3.53  0.030 / 0.030
G03     303.0          61.9                7.5 +/-    1.48       8.4 +/-    1.48  0.030 / 0.040
G14     77.4           32.4                9.5 +/-    1.65      15.8 +/-    1.65  0.080 / 0.130
G16     149.3          38.6               10.9 +/-    1.09      16.2 +/-    1.09  0.080 / 0.140
G22     243.5          74.2                8.8 +/-    0.52       9.1 +/-    0.52  0.040 / 0.030
G23     302.1          32.5                7.5 +/-    2.31      12.4 +/-    2.31  0.040 / 0.080
G26     109.7          52.1                8.8 +/-    0.47      10.8 +/-    0.47  0.060 / 0.100
G31     43.3           38.1                6.6 +/-    1.21       9.8 +/-    1.21  0.060 / 0.090