PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/25-02:28:10
G01     126.1          12.1               -8.9 +/-   34.23     -23.6 +/-   34.23  0.040 / 0.040
G07     62.5           68.0                4.4 +/-    0.53       4.7 +/-    0.53  0.030 / 0.040
G08     48.4           36.3                1.8 +/-    0.35       2.8 +/-    0.35  0.050 / 0.070
G09     176.6          33.5                7.5 +/-    2.80      12.2 +/-    2.80  0.040 / 0.070
G11     115.0          36.3                6.9 +/-    0.54      10.7 +/-    0.54  0.100 / 0.320
G13     320.7          12.9               -2.1 +/-   13.15      -5.5 +/-   13.15  0.120 / 0.350
G17     198.9          18.2                6.2 +/-    1.49      14.3 +/-    1.49  0.110 / 0.360
G18     99.0           17.0                6.1 +/-    1.60      14.5 +/-    1.60  0.130 / 0.280
G28     275.1          51.7                4.7 +/-    0.71       5.8 +/-    0.71  0.050 / 0.040
G30     332.2          60.4                2.9 +/-    1.04       3.3 +/-    1.04  0.040 / 0.040