PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-16:12:30
G02     214.7          54.7               12.3 +/-    0.91      14.7 +/-    0.91  0.140 / 0.130
G06     61.5           74.2               10.5 +/-    0.30      10.9 +/-    0.30  0.130 / 0.150
G12     319.2          38.4                7.8 +/-    0.87      11.7 +/-    0.87  0.050 / 0.070
G17     56.2           32.6                7.8 +/-    2.23      12.9 +/-    2.23  0.060 / 0.070
G19     31.7           53.5               10.1 +/-    1.03      12.2 +/-    1.03  0.050 / 0.030
G24     266.5          42.5               10.7 +/-    1.58      14.9 +/-    1.58  0.050 / 0.030
G28     120.8          15.8                9.7 +/-    1.29      23.7 +/-    1.29  0.050 / 0.040