PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-14:43:00
G01     66.9           31.9                7.6 +/-    1.16      12.8 +/-    1.16  0.040 / 0.050
G07     138.3          25.1                8.6 +/-    1.57      16.8 +/-    1.57  0.040 / 0.050
G11     51.6           29.5                7.7 +/-    1.03      13.6 +/-    1.03  0.110 / 0.120
G13     270.1          38.1                9.4 +/-    3.14      14.2 +/-    3.14  0.110 / 0.110
G15     300.1          15.7                5.5 +/-    1.38      13.5 +/-    1.38  0.100 / 0.150
G17     234.8          68.3               10.2 +/-    0.66      10.9 +/-    0.66  0.120 / 0.130
G18     46.2           16.4                7.5 +/-    3.16      17.9 +/-    3.16  0.030 / 0.040
G19     225.3          45.7                9.6 +/-    2.24      12.9 +/-    2.24  0.030 / 0.040
G28     12.1           60.7                8.9 +/-    1.65      10.0 +/-    1.65  0.120 / 0.080
G30     138.1          58.0               10.4 +/-    0.84      12.0 +/-    0.84  0.100 / 0.130