PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-18:12:30
G07     0.9            65.1               11.5 +/-    0.69      12.5 +/-    0.69  0.100 / 0.130
G08     81.6           51.8               11.7 +/-    0.57      14.4 +/-    0.57  0.140 / 0.160
G09     185.1          65.0               10.8 +/-    0.56      11.8 +/-    0.56  0.030 / 0.040
G11     138.5          20.0               13.7 +/-    2.11      30.2 +/-    2.11  0.030 / 0.040
G23     158.2          32.8               12.1 +/-    1.34      20.0 +/-    1.34  0.080 / 0.070
G27     48.8           27.8                8.6 +/-    1.83      15.7 +/-    1.83  0.070 / 0.070
G28     243.2          32.5               13.6 +/-    2.46      22.6 +/-    2.46  0.030 / 0.030
G30     310.0          42.4               10.8 +/-    0.89      15.1 +/-    0.89  0.030 / 0.030