PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-23:58:10
G01     117.9          18.4               10.4 +/-    1.84      23.9 +/-    1.84  0.080 / 0.210
G07     89.0           62.8                9.5 +/-    0.74      10.5 +/-    0.74  0.080 / 0.200
G08     43.8           28.3                5.7 +/-    0.48      10.4 +/-    0.48  0.040 / 0.070
G09     176.5          24.8               10.1 +/-    1.30      19.9 +/-    1.30  0.040 / 0.050
G11     102.9          40.7               11.4 +/-    0.64      16.4 +/-    0.64  0.020 / 0.050
G13     316.9          20.9                6.4 +/-    2.95      13.7 +/-    2.95  0.020 / 0.050
G17     200.7          27.9               12.0 +/-    2.40      22.0 +/-    2.40  0.150 / 0.500
G18     88.6           20.7                9.3 +/-    1.07      20.1 +/-    1.07  0.090 / 0.440
G28     290.0          55.9                9.4 +/-    1.00      11.1 +/-    1.00  0.150 / 0.360
G30     347.2          69.3                7.2 +/-    0.86       7.6 +/-    0.86  0.120 / 0.310