PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-18:27:40
G07     325.6          56.0               10.8 +/-    0.57      12.8 +/-    0.57  0.040 / 0.040
G08     113.4          47.3               12.5 +/-    0.44      16.3 +/-    0.44  0.030 / 0.040
G09     241.4          82.7               13.0 +/-    0.42      13.1 +/-    0.42  0.070 / 0.050
G16     43.5           19.8                8.6 +/-    2.22      19.0 +/-    2.22  0.050 / 0.050
G23     151.4          53.8               12.9 +/-    0.83      15.6 +/-    0.83  0.180 / 0.290
G27     68.7           36.9               10.5 +/-    0.84      16.0 +/-    0.84  0.250 / 0.270
G28     229.0          17.2               11.9 +/-    4.29      27.9 +/-    4.29  0.030 / 0.020
G30     294.0          29.1                9.8 +/-    1.27      17.6 +/-    1.27  0.030 / 0.030