PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-16:28:10
G02     216.8          59.0               12.5 +/-    0.81      14.3 +/-    0.81  0.050 / 0.070
G06     56.4           74.1               10.6 +/-    0.48      11.0 +/-    0.48  0.060 / 0.070
G12     319.1          37.2                9.5 +/-    1.42      14.4 +/-    1.42  0.070 / 0.070
G17     60.2           29.4               10.8 +/-    2.30      19.1 +/-    2.30  0.050 / 0.060
G19     43.1           46.9               10.4 +/-    0.65      13.7 +/-    0.65  0.060 / 0.120
G24     266.5          41.2               11.6 +/-    0.67      16.5 +/-    0.67  0.040 / 0.100
G28     123.8          12.3               13.9 +/-    1.72      36.9 +/-    1.72  0.050 / 0.070