PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-21:43:00
G01     114.8          20.4               12.0 +/-    1.45      26.1 +/-    1.45  0.090 / 0.210
G07     96.6           59.7               11.3 +/-    0.59      12.9 +/-    0.59  0.090 / 0.230
G08     43.0           26.0                8.9 +/-    0.76      17.0 +/-    0.76  0.040 / 0.070
G09     176.6          22.3               12.1 +/-    2.29      25.3 +/-    2.29  0.040 / 0.050
G11     98.6           41.8               11.4 +/-    0.67      16.2 +/-    0.67  0.040 / 0.030
G13     315.1          23.5                8.5 +/-    2.15      17.2 +/-    2.15  0.040 / 0.030
G17     201.8          30.7               12.9 +/-    0.93      22.3 +/-    0.93  0.080 / 0.140
G18     86.2           21.9               10.6 +/-    1.48      22.2 +/-    1.48  0.080 / 0.180
G28     294.8          56.8                9.8 +/-    0.89      11.5 +/-    0.89  0.030 / 0.050
G30     356.2          72.6               10.6 +/-    0.54      11.1 +/-    0.54  0.040 / 0.050