PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-16:12:50
G01     67.1           32.0                7.4 +/-    1.86      12.5 +/-    1.86  0.040 / 0.060
G07     138.3          24.3                8.5 +/-    2.17      16.9 +/-    2.17  0.040 / 0.050
G11     51.5           29.1                6.4 +/-    1.30      11.5 +/-    1.30  0.100 / 0.140
G13     270.2          38.1                9.2 +/-    3.59      13.9 +/-    3.59  0.080 / 0.180
G15     299.8          15.9                6.2 +/-    1.73      15.0 +/-    1.73  0.100 / 0.150
G17     235.5          69.4                9.3 +/-    0.61       9.9 +/-    0.61  0.080 / 0.170
G18     46.1           16.2                6.7 +/-    2.84      16.3 +/-    2.84  0.050 / 0.080
G19     225.3          45.4               11.1 +/-    1.94      14.9 +/-    1.94  0.040 / 0.090
G28     12.9           60.6                8.1 +/-    1.81       9.1 +/-    1.81  0.030 / 0.040
G30     137.9          56.7                9.4 +/-    0.95      11.0 +/-    0.95  0.030 / 0.040