PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-18:12:50
G01     43.0           19.1                9.5 +/-    3.81      21.4 +/-    3.81  0.040 / 0.070
G06     176.1          33.3               14.2 +/-    1.17      23.3 +/-    1.17  0.040 / 0.060
G13     240.5          25.5               11.9 +/-    1.99      23.0 +/-    1.99  0.140 / 0.400
G15     274.3          13.7                9.0 +/-    2.03      23.0 +/-    2.03  0.200 / 0.270
G17     346.8          74.6               11.6 +/-    0.31      12.0 +/-    0.31  0.120 / 0.290
G19     265.3          67.5               12.6 +/-    0.99      13.5 +/-    0.99  0.110 / 0.260
G24     317.6          15.6                8.2 +/-    2.00      20.2 +/-    2.00  0.050 / 0.050
G28     59.2           52.7               12.0 +/-    1.14      14.7 +/-    1.14  0.040 / 0.050
G30     152.3          28.8               14.3 +/-    1.07      25.7 +/-    1.07  0.030 / 0.030