PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-18:42:50
G01     71.9           33.1               15.0 +/-    1.04      24.7 +/-    1.04  0.070 / 0.290
G07     136.9          32.3               17.5 +/-    0.91      29.3 +/-    0.91  0.080 / 0.310
G11     54.7           31.9               14.7 +/-    1.03      24.7 +/-    1.03  0.060 / 0.120
G13     275.8          37.6               18.3 +/-    0.91      27.6 +/-    0.91  0.060 / 0.100
G15     304.1          14.6               14.0 +/-    3.05      35.1 +/-    3.05  0.030 / 0.040
G17     231.0          65.5               17.9 +/-    0.53      19.5 +/-    0.53  0.030 / 0.040
G18     50.0           18.9               13.1 +/-    1.07      29.7 +/-    1.07  0.050 / 0.060
G19     223.5          39.4               19.9 +/-    1.34      29.2 +/-    1.34  0.050 / 0.050
G28     18.2           59.5               15.0 +/-    0.44      17.1 +/-    0.44  0.030 / 0.050
G30     134.5          62.3               18.3 +/-    0.73      20.4 +/-    0.73  0.030 / 0.050