PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-15:12:50
G01     107.5          25.3               11.0 +/-    1.27      21.2 +/-    1.27  0.080 / 0.150
G07     106.1          58.8               11.8 +/-    1.13      13.6 +/-    1.13  0.070 / 0.130
G08     42.0           20.8                9.7 +/-    2.01      21.0 +/-    2.01  0.030 / 0.030
G09     174.2          13.1               11.3 +/-    2.62      29.4 +/-    2.62  0.020 / 0.020
G11     89.3           42.7               10.6 +/-    0.96      14.8 +/-    0.96  0.040 / 0.040
G13     309.9          28.4               10.2 +/-    1.58      18.5 +/-    1.58  0.030 / 0.040
G17     205.9          36.6               12.3 +/-    0.61      19.0 +/-    0.61  0.080 / 0.080
G18     80.7           24.2               10.5 +/-    2.08      20.9 +/-    2.08  0.070 / 0.090
G28     316.9          60.9               10.0 +/-    0.90      11.3 +/-    0.90  0.240 / 0.340
G30     19.2           77.7               11.8 +/-    0.59      12.1 +/-    0.59  0.260 / 0.350