PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-19:43:10
G01     66.3           31.9               12.4 +/-    0.61      21.0 +/-    0.61  0.060 / 0.160
G11     50.6           27.7                9.9 +/-    0.62      18.2 +/-    0.62  0.070 / 0.170
G13     269.1          37.7               13.8 +/-    0.58      20.9 +/-    0.58  0.040 / 0.060
G15     298.6          16.2               11.0 +/-    2.07      26.7 +/-    2.07  0.050 / 0.050
G17     239.4          72.5               14.1 +/-    1.24      14.7 +/-    1.24  0.120 / 0.450
G18     44.9           15.1               10.2 +/-    1.47      25.4 +/-    1.47  0.130 / 0.410
G19     226.2          45.6               15.1 +/-    0.50      20.2 +/-    0.50  0.050 / 0.090
G28     16.7           60.1               12.8 +/-    0.56      14.5 +/-    0.56  0.060 / 0.070
G30     138.8          56.3               13.4 +/-    0.69      15.7 +/-    0.69  0.040 / 0.040