PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-18:57:40
G07     348.2          62.7               12.1 +/-    0.47      13.4 +/-    0.47  0.040 / 0.040
G08     91.0           51.8               13.0 +/-    0.98      16.1 +/-    0.98  0.030 / 0.040
G09     189.3          71.0               13.3 +/-    0.83      14.0 +/-    0.83  0.090 / 0.070
G11     142.3          16.3               12.8 +/-    2.51      30.9 +/-    2.51  0.090 / 0.080
G23     156.9          39.1               12.9 +/-    0.76      19.1 +/-    0.76  0.090 / 0.170
G27     53.6           31.4               10.1 +/-    1.11      17.2 +/-    1.11  0.100 / 0.200
G28     238.5          28.4               12.8 +/-    1.20      23.2 +/-    1.20  0.030 / 0.030
G30     305.0          38.1               11.0 +/-    1.54      16.5 +/-    1.54  0.040 / 0.030