PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-08:27:10
G02     215.0          58.1                6.7 +/-    0.67       7.7 +/-    0.67  0.100 / 0.070
G06     65.4           77.2                4.7 +/-    0.22       4.9 +/-    0.22  0.090 / 0.060
G12     317.7          34.1                1.9 +/-    1.06       3.0 +/-    1.06  0.130 / 0.230
G17     57.5           31.0                3.6 +/-    2.10       6.2 +/-    2.10  0.190 / 0.250
G19     34.5           51.9                5.2 +/-    1.46       6.5 +/-    1.46  0.080 / 0.090
G24     261.2          42.9                4.4 +/-    5.49       6.2 +/-    5.49  0.100 / 0.070
G28     120.9          16.7                8.8 +/-    1.61      21.1 +/-    1.61  0.030 / 0.020