PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-20:58:10
G01     112.6          21.8               12.7 +/-    2.60      26.7 +/-    2.60  0.030 / 0.040
G07     100.9          57.7               13.1 +/-    1.28      15.1 +/-    1.28  0.030 / 0.030
G08     42.5           24.3               10.3 +/-    1.71      20.5 +/-    1.71  0.170 / 0.210
G09     176.4          20.3               15.3 +/-    3.92      33.4 +/-    3.92  0.140 / 0.200
G11     95.5           42.3               13.3 +/-    0.73      18.7 +/-    0.73  0.090 / 0.180
G13     313.7          25.2               10.0 +/-    0.79      19.4 +/-    0.79  0.080 / 0.190
G17     202.5          32.8               14.6 +/-    1.22      24.1 +/-    1.22  0.030 / 0.070
G18     84.0           22.5               12.1 +/-    2.16      25.2 +/-    2.16  0.050 / 0.050
G28     298.6          57.6               10.8 +/-    1.38      12.5 +/-    1.38  0.030 / 0.020
G30     3.5            74.6               12.0 +/-    0.95      12.4 +/-    0.95  0.030 / 0.030