PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/01-21:42:40
G07     52.5           68.1               11.8 +/-    0.74      12.6 +/-    0.74  0.120 / 0.140
G08     52.7           41.0               10.0 +/-    0.75      14.3 +/-    0.75  0.110 / 0.170
G09     178.8          41.1               12.5 +/-    1.24      17.8 +/-    1.24  0.050 / 0.100
G11     120.7          33.6               13.8 +/-    1.28      22.4 +/-    1.28  0.060 / 0.100
G17     198.5          12.5               13.7 +/-    1.86      36.1 +/-    1.86  0.040 / 0.050
G18     104.1          14.6               13.1 +/-    1.72      33.0 +/-    1.72  0.040 / 0.050
G23     161.2          12.8               12.6 +/-    2.06      32.9 +/-    2.06  0.080 / 0.390
G27     38.5           12.6                8.1 +/-    1.73      21.2 +/-    1.73  0.070 / 0.390
G28     266.5          47.7               13.8 +/-    1.09      17.9 +/-    1.09  0.030 / 0.040
G30     328.2          57.3               10.9 +/-    0.74      12.7 +/-    0.74  0.030 / 0.040