PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-01:27:40
G03     261.1          69.5                3.5 +/-    1.28       3.7 +/-    1.28  0.030 / 0.040
G09     299.9          14.0                2.4 +/-    3.41       6.1 +/-    3.41  0.030 / 0.040
G14     95.2           17.5                6.0 +/-    1.78      14.0 +/-    1.78  0.040 / 0.050
G16     145.8          51.9                7.9 +/-    0.94       9.8 +/-    0.94  0.070 / 0.060
G22     202.3          62.7                5.4 +/-    0.41       5.9 +/-    0.41  0.120 / 0.190
G23     313.6          43.1                3.2 +/-    1.03       4.4 +/-    1.03  0.090 / 0.140
G26     84.9           55.9                4.6 +/-    0.69       5.4 +/-    0.69  0.130 / 0.200
G31     48.0           27.6                1.5 +/-    2.01       2.8 +/-    2.01  0.140 / 0.270