PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-05:43:10
G01     65.7           32.1                6.0 +/-    0.62      10.1 +/-    0.62  0.040 / 0.040
G07     139.6          25.0               11.6 +/-    1.14      22.8 +/-    1.14  0.040 / 0.040
G11     49.9           26.3                5.6 +/-    1.67      10.6 +/-    1.67  0.070 / 0.080
G13     268.4          37.2                7.1 +/-    1.07      10.8 +/-    1.07  0.050 / 0.070
G15     300.2          15.1                0.6 +/-    1.16       1.5 +/-    1.16  0.080 / 0.120
G17     245.8          75.7                9.6 +/-    0.53       9.8 +/-    0.53  0.070 / 0.140
G19     227.1          43.6                8.8 +/-    1.43      12.1 +/-    1.43  0.040 / 0.070
G28     23.4           59.1                7.5 +/-    0.48       8.6 +/-    0.48  0.040 / 0.060
G30     140.0          59.1               10.9 +/-    0.74      12.4 +/-    0.74  0.040 / 0.130