PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-18:58:10
G07     0.9            65.2                9.3 +/-    0.62      10.2 +/-    0.62  0.030 / 0.030
G08     80.5           51.6               10.4 +/-    1.12      12.9 +/-    1.12  0.030 / 0.040
G09     184.5          64.4               10.5 +/-    0.86      11.5 +/-    0.86  0.100 / 0.120
G11     138.1          20.3               12.3 +/-    1.04      26.9 +/-    1.04  0.080 / 0.150
G23     158.4          32.6               11.6 +/-    1.26      19.3 +/-    1.26  0.080 / 0.140
G27     48.5           27.7                6.6 +/-    2.16      12.1 +/-    2.16  0.090 / 0.110
G28     243.6          33.0                9.7 +/-    1.92      16.0 +/-    1.92  0.030 / 0.030
G30     310.1          42.4                9.1 +/-    1.16      12.7 +/-    1.16  0.030 / 0.030