PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-23:12:50
G01     52.1           26.8               10.0 +/-    0.94      18.7 +/-    0.94  0.090 / 0.100
G06     178.5          22.7               14.8 +/-    0.78      30.5 +/-    0.78  0.100 / 0.110
G07     145.6          15.0               13.6 +/-    2.93      33.8 +/-    2.93  0.030 / 0.070
G11     45.9           18.8                7.8 +/-    1.07      17.6 +/-    1.07  0.040 / 0.070
G13     253.4          31.5               13.4 +/-    1.66      22.7 +/-    1.66  0.080 / 0.230
G15     285.5          16.2               10.5 +/-    2.26      25.5 +/-    2.26  0.080 / 0.220
G17     283.8          76.8               13.5 +/-    0.65      13.8 +/-    0.65  0.030 / 0.030
G19     243.2          57.6               15.4 +/-    0.60      17.8 +/-    0.60  0.040 / 0.040
G28     49.8           53.5               10.9 +/-    0.67      13.2 +/-    0.67  0.070 / 0.140
G30     148.0          41.3               15.2 +/-    0.76      21.6 +/-    0.76  0.100 / 0.170