PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/27-06:27:50
G01     66.3           32.2                3.8 +/-    0.61       6.4 +/-    0.61  0.040 / 0.040
G07     139.3          25.7                7.6 +/-    1.06      14.6 +/-    1.06  0.040 / 0.040
G11     50.2           26.7                4.5 +/-    1.47       8.6 +/-    1.47  0.070 / 0.110
G13     269.0          37.3                6.9 +/-    1.04      10.6 +/-    1.04  0.080 / 0.130
G15     301.0          14.9                0.1 +/-    2.02       0.3 +/-    2.02  0.040 / 0.060
G17     244.2          75.2                7.3 +/-    0.37       7.5 +/-    0.37  0.040 / 0.060
G19     226.7          42.9                7.3 +/-    1.22      10.2 +/-    1.22  0.050 / 0.110
G28     22.8           59.1                5.5 +/-    0.41       6.3 +/-    0.41  0.050 / 0.120
G30     139.6          59.7                8.4 +/-    0.78       9.5 +/-    0.78  0.030 / 0.040