PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-09:27:30
G07     36.8           69.5                5.8 +/-    0.73       6.1 +/-    0.73  0.040 / 0.030
G08     54.2           42.3                4.4 +/-    0.51       6.2 +/-    0.51  0.040 / 0.040
G09     175.1          38.1                6.2 +/-    1.09       9.4 +/-    1.09  0.080 / 0.110
G11     122.9          32.2                6.3 +/-    0.85      10.6 +/-    0.85  0.070 / 0.150
G17     198.9          10.6               -7.3 +/-    6.31     -20.1 +/-    6.31  0.120 / 0.190
G18     107.8          13.8                5.4 +/-    1.06      13.7 +/-    1.06  0.130 / 0.240
G23     160.9          13.7                5.4 +/-    1.74      13.8 +/-    1.74  0.030 / 0.030
G27     38.5           12.7                2.5 +/-    2.12       6.5 +/-    2.12  0.030 / 0.030
G28     266.9          49.0                5.8 +/-    4.13       7.4 +/-    4.13  0.150 / 0.320
G30     325.0          54.6                3.8 +/-    0.54       4.6 +/-    0.54  0.180 / 0.280