PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-23:27:50
G01     118.7          17.7                9.6 +/-    2.40      22.3 +/-    2.40  0.090 / 0.210
G07     87.1           63.2                8.9 +/-    0.95       9.9 +/-    0.95  0.090 / 0.220
G08     44.2           29.3                6.8 +/-    1.43      12.0 +/-    1.43  0.170 / 0.340
G09     176.8          26.0                8.4 +/-    1.51      16.1 +/-    1.51  0.210 / 0.400
G11     104.3          40.4                8.7 +/-    1.14      12.6 +/-    1.14  0.030 / 0.040
G13     317.4          20.1                7.0 +/-    1.62      15.3 +/-    1.62  0.030 / 0.040
G17     200.5          26.7                9.6 +/-    1.56      18.0 +/-    1.56  0.090 / 0.060
G18     89.9           20.4                9.4 +/-    2.22      20.5 +/-    2.22  0.070 / 0.060
G28     288.1          55.4                9.6 +/-    2.30      11.3 +/-    2.30  0.100 / 0.130
G30     345.7          68.6                8.1 +/-    0.49       8.7 +/-    0.49  0.110 / 0.140