PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-13:27:30
G07     322.2          54.8                5.0 +/-    0.94       5.9 +/-    0.94  0.030 / 0.050
G08     120.3          45.7               10.1 +/-    0.69      13.5 +/-    0.69  0.050 / 0.050
G09     265.8          82.5                7.5 +/-    0.86       7.5 +/-    0.86  0.230 / 0.550
G16     43.3           18.7                4.1 +/-    0.74       9.4 +/-    0.74  0.230 / 0.510
G23     149.0          53.3                8.7 +/-    0.84      10.6 +/-    0.84  0.050 / 0.080
G27     70.9           36.9                5.9 +/-    0.90       9.1 +/-    0.90  0.050 / 0.080
G28     227.4          14.0                5.7 +/-    1.95      14.5 +/-    1.95  0.080 / 0.230
G30     293.5          30.0                5.8 +/-    2.13      10.1 +/-    2.13  0.070 / 0.230