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                9.9 +/-    1.07      22.3 +/-    1.07  0.180 / 0.510
G06     176.1          33.3               15.5 +/-    1.26      25.4 +/-    1.26  0.140 / 0.430
G13     240.5          25.5               13.6 +/-    2.39      26.2 +/-    2.39  0.040 / 0.090
G15     274.3          13.7               11.1 +/-    1.49      28.5 +/-    1.49  0.040 / 0.110
G17     346.8          74.6               12.3 +/-    0.62      12.7 +/-    0.62  0.070 / 0.150
G19     265.3          67.5               12.5 +/-    0.36      13.5 +/-    0.36  0.070 / 0.140
G24     317.6          15.6                9.4 +/-    2.18      23.1 +/-    2.18  0.110 / 0.120
G28     59.2           52.7               11.5 +/-    0.31      14.1 +/-    0.31  0.120 / 0.110
G30     152.3          28.8               13.4 +/-    1.46      24.1 +/-    1.46  0.030 / 0.040