PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/25-03:57:50
G01     86.0           32.5                3.7 +/-    0.78       6.2 +/-    0.78  0.070 / 0.070
G07     128.8          39.9                5.9 +/-    0.92       8.6 +/-    0.92  0.070 / 0.060
G11     62.9           37.2                4.5 +/-    1.19       6.8 +/-    1.19  0.040 / 0.050
G13     290.0          37.4                2.1 +/-    3.17       3.2 +/-    3.17  0.040 / 0.040
G15     313.8          10.7               -5.7 +/-   13.26     -15.7 +/-   13.26  0.100 / 0.210
G17     216.4          60.0                7.4 +/-    1.03       8.4 +/-    1.03  0.100 / 0.180
G18     56.9           21.1                3.7 +/-    2.06       8.0 +/-    2.06  0.080 / 0.080
G19     216.1          28.5                5.5 +/-    1.93      10.0 +/-    1.93  0.090 / 0.100
G28     350.9          61.7                4.1 +/-    0.46       4.6 +/-    0.46  0.070 / 0.090
G30     113.2          74.8                5.7 +/-    0.77       5.9 +/-    0.77  0.090 / 0.090