PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-03:43:10
G10     304.6          54.0                7.5 +/-    0.72       9.0 +/-    0.72  0.080 / 0.300
G14     212.1          13.3                9.1 +/-    3.69      23.7 +/-    3.69  0.240 / 0.420
G15     45.8           25.3                6.4 +/-    2.28      12.3 +/-    2.28  0.080 / 0.090
G20     354.2          65.2               10.2 +/-    0.64      11.1 +/-    0.64  0.060 / 0.060
G21     108.9          71.7                9.5 +/-    0.94       9.9 +/-    0.94  0.030 / 0.030
G24     91.3           28.0                6.2 +/-    1.61      11.4 +/-    1.61  0.040 / 0.030
G27     294.9          36.0                9.7 +/-    3.23      15.1 +/-    3.23  0.200 / 0.160
G32     212.5          38.6               10.7 +/-    1.31      15.9 +/-    1.31  0.090 / 0.190