PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-09:28:10
G02     213.5          59.6                6.8 +/-    0.73       7.7 +/-    0.73  0.150 / 0.310
G06     80.9           81.1                5.1 +/-    0.44       5.1 +/-    0.44  0.130 / 0.300
G12     317.6          32.6                4.0 +/-    1.65       6.6 +/-    1.65  0.040 / 0.080
G17     56.6           32.8                2.0 +/-    1.36       3.3 +/-    1.36  0.060 / 0.070
G19     38.6           49.5                3.5 +/-    1.48       4.4 +/-    1.48  0.080 / 0.100
G24     270.2          41.7                5.3 +/-    3.18       7.5 +/-    3.18  0.080 / 0.110
G28     121.6          14.5                5.6 +/-    3.23      14.2 +/-    3.23  0.020 / 0.020