PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-22:13:10
G07     344.5          61.8               10.0 +/-    0.39      11.2 +/-    0.39  0.120 / 0.190
G08     89.9           51.5               10.4 +/-    0.61      12.8 +/-    0.61  0.080 / 0.150
G09     186.8          70.3               10.8 +/-    0.43      11.4 +/-    0.43  0.030 / 0.040
G11     142.2          16.1               13.3 +/-    3.36      32.2 +/-    3.36  0.040 / 0.030
G23     157.3          40.4               11.0 +/-    0.87      15.9 +/-    0.87  0.110 / 0.080
G27     54.3           32.0                8.4 +/-    1.85      14.1 +/-    1.85  0.100 / 0.080
G28     238.6          29.0               11.3 +/-    1.88      20.2 +/-    1.88  0.030 / 0.030
G30     304.1          36.8               10.6 +/-    1.57      16.2 +/-    1.57  0.030 / 0.030