PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-09:28:10
G07     38.1           69.5                5.5 +/-    0.51       5.8 +/-    0.51  0.030 / 0.040
G08     53.8           42.0                4.7 +/-    1.12       6.7 +/-    1.12  0.030 / 0.040
G09     175.1          37.6                7.1 +/-    1.09      10.7 +/-    1.09  0.040 / 0.040
G11     122.4          32.4                7.4 +/-    1.47      12.4 +/-    1.47  0.040 / 0.030
G17     198.9          11.0               -4.6 +/-   18.78     -12.6 +/-   18.78  0.080 / 0.140
G18     107.4          14.0                6.3 +/-    2.50      16.0 +/-    2.50  0.090 / 0.160
G23     160.9          13.2                4.7 +/-    1.47      12.2 +/-    1.47  0.180 / 0.530
G27     38.4           12.3                2.0 +/-    1.30       5.4 +/-    1.30  0.180 / 0.370
G28     267.5          49.3                4.5 +/-    0.89       5.7 +/-    0.89  0.090 / 0.340
G30     325.4          54.9                4.9 +/-    0.64       5.9 +/-    0.64  0.080 / 0.320