PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/20-00:27:50
G01     47.1           23.1                8.7 +/-    1.10      17.7 +/-    1.10  0.130 / 0.150
G06     177.6          28.4               11.7 +/-    1.94      21.1 +/-    1.94  0.060 / 0.130
G11     44.5           14.0                6.6 +/-    1.96      16.9 +/-    1.96  0.040 / 0.050
G13     247.2          28.1               11.8 +/-    2.27      21.5 +/-    2.27  0.040 / 0.050
G15     279.4          15.2                8.8 +/-    2.91      21.9 +/-    2.91  0.020 / 0.020
G17     317.9          77.1                8.5 +/-    0.39       8.7 +/-    0.39  0.020 / 0.020
G19     253.9          62.9                8.7 +/-    0.48       9.7 +/-    0.48  0.080 / 0.120
G24     318.9          10.9              -12.1 +/-   26.98     -33.2 +/-   26.98  0.070 / 0.120
G28     59.0           50.9                8.8 +/-    0.70      11.0 +/-    0.70  0.070 / 0.140
G30     150.6          34.5               13.3 +/-    1.85      21.3 +/-    1.85  0.080 / 0.130