PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-20:58:00
G01     109.5          23.7               13.3 +/-    2.27      26.8 +/-    2.27  0.030 / 0.040
G07     106.0          55.3               13.1 +/-    0.38      15.6 +/-    0.38  0.030 / 0.040
G08     41.9           21.5               10.6 +/-    2.64      22.5 +/-    2.64  0.040 / 0.050
G09     175.9          17.3               13.5 +/-    1.92      31.8 +/-    1.92  0.040 / 0.050
G11     90.9           42.7               13.8 +/-    0.67      19.2 +/-    0.67  0.170 / 0.300
G13     311.5          27.5                9.8 +/-    1.97      18.2 +/-    1.97  0.180 / 0.300
G17     203.6          36.1               13.1 +/-    1.98      20.3 +/-    1.98  0.070 / 0.180
G18     80.5           23.1               11.6 +/-    1.53      23.6 +/-    1.53  0.070 / 0.160
G28     304.5          58.6               11.9 +/-    0.86      13.7 +/-    0.86  0.050 / 0.020
G30     14.6           76.8               12.8 +/-    0.73      13.1 +/-    0.73  0.030 / 0.020