PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-08:12:30
G07     355.9          64.3                4.0 +/-    0.78       4.4 +/-    0.78  0.030 / 0.050
G08     77.1           51.0                6.3 +/-    1.12       7.9 +/-    1.12  0.040 / 0.040
G09     180.2          60.2                8.9 +/-    1.57      10.1 +/-    1.57  0.030 / 0.050
G11     136.8          20.0                5.0 +/-    1.94      11.0 +/-    1.94  0.040 / 0.050
G23     159.0          31.9                7.8 +/-    1.16      13.1 +/-    1.16  0.060 / 0.130
G27     45.6           23.9                3.0 +/-    1.95       6.0 +/-    1.95  0.070 / 0.110
G28     247.7          38.6                7.0 +/-    2.29      10.4 +/-    2.29  0.060 / 0.130
G30     310.4          41.8                3.4 +/-    2.03       4.9 +/-    2.03  0.060 / 0.120