PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-15:43:00
G01     67.8           32.1                9.3 +/-    1.01      15.7 +/-    1.01  0.040 / 0.050
G07     138.0          25.1               10.1 +/-    1.54      19.7 +/-    1.54  0.040 / 0.040
G11     51.9           29.7                7.9 +/-    1.10      14.0 +/-    1.10  0.080 / 0.130
G13     271.0          38.2                9.0 +/-    3.65      13.4 +/-    3.65  0.110 / 0.140
G15     300.5          15.7                6.2 +/-    1.61      15.2 +/-    1.61  0.060 / 0.130
G17     234.1          68.5               10.5 +/-    0.94      11.2 +/-    0.94  0.110 / 0.130
G18     46.6           16.6                6.9 +/-    2.82      16.6 +/-    2.82  0.030 / 0.040
G19     224.7          44.9               10.3 +/-    1.89      13.9 +/-    1.89  0.040 / 0.040
G28     11.5           60.7                8.8 +/-    1.62       9.9 +/-    1.62  0.120 / 0.190
G30     137.4          57.8                9.7 +/-    0.67      11.2 +/-    0.67  0.130 / 0.240