PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-22:13:00
G01     83.9           32.6                8.7 +/-    1.36      14.5 +/-    1.36  0.040 / 0.070
G07     130.1          36.1               11.3 +/-    0.75      17.5 +/-    0.75  0.040 / 0.070
G11     61.6           36.8               10.7 +/-    0.94      16.4 +/-    0.94  0.040 / 0.050
G13     288.0          38.0               14.5 +/-    1.40      21.9 +/-    1.40  0.030 / 0.040
G15     311.3          12.3               10.1 +/-    2.53      26.7 +/-    2.53  0.120 / 0.220
G17     217.6          60.3               12.7 +/-    1.12      14.4 +/-    1.12  0.120 / 0.120
G18     56.1           21.0               10.4 +/-    1.92      22.3 +/-    1.92  0.020 / 0.020
G19     216.5          31.5               13.0 +/-    1.97      22.1 +/-    1.97  0.030 / 0.020
G28     350.5          61.6               10.3 +/-    0.51      11.6 +/-    0.51  0.050 / 0.090
G30     118.9          71.7               12.1 +/-    0.61      12.7 +/-    0.61  0.050 / 0.120