PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-00:12:50
G01     228.9          21.7               10.4 +/-    2.05      22.0 +/-    2.05  0.040 / 0.030
G03     303.0          61.8                4.8 +/-    0.67       5.3 +/-    0.67  0.030 / 0.040
G14     77.8           31.8                6.5 +/-    1.94      11.0 +/-    1.94  0.080 / 0.120
G16     149.3          38.6                7.8 +/-    1.00      11.6 +/-    1.00  0.080 / 0.170
G22     245.3          74.1                6.1 +/-    0.56       6.3 +/-    0.56  0.030 / 0.030
G23     302.5          33.1                5.1 +/-    1.13       8.4 +/-    1.13  0.040 / 0.030
G26     109.1          52.0                6.9 +/-    0.47       8.5 +/-    0.47  0.140 / 0.210
G31     43.5           37.3                4.6 +/-    0.70       6.9 +/-    0.70  0.130 / 0.160