PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-04:12:50
G01     107.7          25.0                7.0 +/-    1.04      13.6 +/-    1.04  0.080 / 0.170
G07     107.3          56.6                6.3 +/-    0.60       7.4 +/-    0.60  0.090 / 0.190
G08     41.5           18.4                3.2 +/-    0.65       7.3 +/-    0.65  0.080 / 0.180
G09     173.5          12.5                4.7 +/-    3.84      12.3 +/-    3.84  0.080 / 0.190
G11     87.4           42.5                5.8 +/-    0.45       8.2 +/-    0.45  0.030 / 0.040
G13     309.9          28.7                3.7 +/-    1.30       6.6 +/-    1.30  0.030 / 0.050
G17     204.3          39.8                6.8 +/-    0.73      10.0 +/-    0.73  0.030 / 0.030
G18     77.6           23.3                4.3 +/-    0.84       8.7 +/-    0.84  0.030 / 0.030
G28     312.2          60.1                5.4 +/-    0.57       6.1 +/-    0.57  0.070 / 0.140
G30     13.2           77.3                5.9 +/-    0.70       6.0 +/-    0.70  0.080 / 0.120