PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-05:43:10
G01     107.3          25.3                7.7 +/-    1.39      15.0 +/-    1.39  0.090 / 0.150
G07     107.6          56.7                7.1 +/-    0.54       8.3 +/-    0.54  0.100 / 0.140
G08     41.5           18.1                2.5 +/-    2.17       5.8 +/-    2.17  0.060 / 0.050
G09     172.8          11.3                5.2 +/-    2.00      14.2 +/-    2.00  0.040 / 0.050
G11     87.0           42.5                7.1 +/-    0.82      10.0 +/-    0.82  0.040 / 0.040
G13     309.6          28.9                3.8 +/-    1.22       6.8 +/-    1.22  0.040 / 0.040
G17     204.6          40.1                7.8 +/-    0.83      11.3 +/-    0.83  0.030 / 0.030
G28     313.7          60.3                4.3 +/-    0.55       4.9 +/-    0.55  0.030 / 0.020
G30     13.9           77.5                5.1 +/-    0.84       5.3 +/-    0.84  0.090 / 0.070