PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/11-21:27:50
G01     89.6           32.0               11.2 +/-    1.05      18.8 +/-    1.05  0.200 / 0.200
G07     125.9          45.6               13.2 +/-    0.43      17.6 +/-    0.43  0.080 / 0.360
G08     42.7           11.0                9.3 +/-    1.79      25.4 +/-    1.79  0.090 / 0.110
G11     70.0           40.7                9.6 +/-    0.84      13.8 +/-    0.84  0.100 / 0.100
G13     294.4          35.9               13.3 +/-    2.87      20.8 +/-    2.87  0.030 / 0.030
G17     215.7          49.5               13.2 +/-    0.93      16.7 +/-    0.93  0.030 / 0.030
G18     63.8           24.0                8.6 +/-    1.34      17.3 +/-    1.34  0.040 / 0.050
G19     215.0          26.9               13.4 +/-    1.61      25.1 +/-    1.61  0.040 / 0.050
G28     351.1          61.7               11.0 +/-    0.45      12.3 +/-    0.45  0.050 / 0.130
G30     109.0          73.6               13.7 +/-    0.94      14.2 +/-    0.94  0.060 / 0.140