PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-15:57:40
G01     113.1          21.2               11.3 +/-    1.43      24.1 +/-    1.43  0.040 / 0.040
G07     99.5           58.2               11.7 +/-    0.36      13.5 +/-    0.36  0.030 / 0.040
G08     43.2           27.2                9.2 +/-    1.35      17.0 +/-    1.35  0.090 / 0.190
G09     176.8          21.6               11.0 +/-    2.47      23.3 +/-    2.47  0.090 / 0.200
G11     97.8           42.5               12.1 +/-    0.95      16.9 +/-    0.95  0.040 / 0.050
G13     314.1          24.8               10.5 +/-    1.34      20.5 +/-    1.34  0.050 / 0.060
G17     202.9          29.4               11.9 +/-    1.15      21.0 +/-    1.15  0.050 / 0.090
G18     86.5           22.6                7.9 +/-    1.27      16.4 +/-    1.27  0.050 / 0.080
G28     294.8          56.4               10.9 +/-    0.98      12.8 +/-    0.98  0.070 / 0.220
G30     11.2           75.2               11.7 +/-    0.52      12.0 +/-    0.52  0.070 / 0.240