PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-12:12:30
G07     40.3           68.5                3.4 +/-    0.48       3.7 +/-    0.48  0.060 / 0.070
G08     55.3           42.8              -16.7 +/-    6.80     -23.3 +/-    6.80  0.060 / 0.080
G09     176.6          41.2                4.5 +/-    1.02       6.5 +/-    1.02  0.160 / 0.250
G11     122.3          30.3                2.8 +/-    4.67       4.9 +/-    4.67  0.170 / 0.320
G17     198.6          10.6               -7.5 +/-    7.18     -20.6 +/-    7.18  0.030 / 0.040
G23     161.0          15.6                3.5 +/-    0.85       8.6 +/-    0.85  0.040 / 0.040
G27     38.3           11.7                4.2 +/-    1.20      11.4 +/-    1.20  0.020 / 0.020
G28     266.7          49.1              -75.7 +/-   27.63     -96.6 +/-   27.63  0.030 / 0.030
G30     323.7          53.0                2.8 +/-    1.21       3.4 +/-    1.21  0.190 / 0.250