PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-17:27:50
G01     109.4          24.3               13.7 +/-    1.18      27.1 +/-    1.18  0.060 / 0.120
G07     102.8          60.3               13.1 +/-    0.72      14.8 +/-    0.72  0.060 / 0.180
G08     42.4           23.8               10.4 +/-    1.85      20.8 +/-    1.85  0.040 / 0.040
G09     175.2          15.6               13.0 +/-    3.01      31.8 +/-    3.01  0.040 / 0.040
G11     93.0           42.8               14.5 +/-    0.51      20.2 +/-    0.51  0.020 / 0.020
G13     311.4          27.1               12.3 +/-    1.46      22.8 +/-    1.46  0.020 / 0.020
G17     205.7          33.1               13.4 +/-    1.58      22.1 +/-    1.58  0.080 / 0.150
G18     83.2           24.0               11.0 +/-    1.27      22.1 +/-    1.27  0.090 / 0.150
G28     313.5          60.6               10.6 +/-    0.99      12.0 +/-    0.99  0.070 / 0.120
G30     16.0           76.9               13.6 +/-    0.69      14.0 +/-    0.69  0.100 / 0.140