PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/09-17:57:40
G07     343.5          61.5               10.0 +/-    0.39      11.3 +/-    0.39  0.080 / 0.090
G08     96.9           51.5               12.5 +/-    0.71      15.4 +/-    0.71  0.060 / 0.090
G09     194.2          74.5               13.0 +/-    0.95      13.5 +/-    0.95  0.040 / 0.020
G11     144.4          14.3               14.5 +/-    0.86      36.7 +/-    0.86  0.050 / 0.030
G16     46.6           10.5                8.5 +/-    1.79      23.5 +/-    1.79  0.060 / 0.110
G23     155.8          42.0               -6.4 +/-    0.57      -9.0 +/-    0.57  0.060 / 0.070
G27     56.5           32.9                9.2 +/-    1.07      15.2 +/-    1.07  0.050 / 0.070
G28     236.1          25.7               13.9 +/-    1.54      26.7 +/-    1.54  0.040 / 0.100
G30     302.8          36.4               10.2 +/-    1.62      15.8 +/-    1.62  0.270 / 0.560