PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-05:28:00
G07     4.5            66.1                3.6 +/-    0.96       3.9 +/-    0.96  0.060 / 0.100
G08     70.2           50.0                6.1 +/-    0.50       7.7 +/-    0.50  0.050 / 0.100
G09     180.8          55.9                6.5 +/-    1.45       7.7 +/-    1.45  0.030 / 0.040
G11     134.2          23.1                8.4 +/-    1.61      17.1 +/-    1.61  0.040 / 0.040
G23     159.8          26.4                7.7 +/-    1.18      14.5 +/-    1.18  0.030 / 0.060
G27     42.7           20.5                2.7 +/-    0.50       5.8 +/-    0.50  0.040 / 0.050
G28     252.9          42.2                6.1 +/-    0.48       8.5 +/-    0.48  0.050 / 0.040
G30     315.7          46.6                2.5 +/-    0.77       3.3 +/-    0.77  0.060 / 0.050