PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-19:27:50
G01     68.2           32.3               11.0 +/-    2.43      18.3 +/-    2.43  0.040 / 0.040
G07     137.9          23.2               14.7 +/-    1.77      29.9 +/-    1.77  0.040 / 0.030
G11     51.6           29.0                9.5 +/-    1.70      17.0 +/-    1.70  0.080 / 0.150
G13     271.3          38.1               10.4 +/-    3.11      15.7 +/-    3.11  0.090 / 0.160
G15     300.2          15.9                6.4 +/-    1.69      15.6 +/-    1.69  0.050 / 0.040
G17     235.5          70.9               11.7 +/-    0.57      12.3 +/-    0.57  0.040 / 0.050
G18     46.2           16.1                9.3 +/-    1.68      22.4 +/-    1.68  0.050 / 0.120
G19     224.7          44.1               12.2 +/-    1.99      16.7 +/-    1.99  0.080 / 0.140
G28     13.4           60.5               10.6 +/-    1.11      12.0 +/-    1.11  0.200 / 0.450
G30     137.3          57.9               12.6 +/-    0.36      14.5 +/-    0.36  0.180 / 0.280