PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-14:43:10
G01     45.4           21.2                7.0 +/-    1.16      14.9 +/-    1.16  0.230 / 0.320
G06     176.7          31.3               14.6 +/-    2.49      24.9 +/-    2.49  0.210 / 0.310
G13     246.4          26.7                9.5 +/-    1.36      17.8 +/-    1.36  0.070 / 0.200
G15     279.9          14.3                6.5 +/-    1.06      16.5 +/-    1.06  0.110 / 0.200
G17     352.4          74.5                9.8 +/-    0.57      10.1 +/-    0.57  0.050 / 0.090
G19     261.8          66.8                7.9 +/-    1.24       8.5 +/-    1.24  0.060 / 0.110
G24     318.9          11.7               -2.5 +/-   28.17      -6.6 +/-   28.17  0.080 / 0.150
G28     62.2           50.0                8.5 +/-    1.00      10.8 +/-    1.00  0.080 / 0.170
G30     152.5          36.7               12.3 +/-    0.54      18.9 +/-    0.54  0.030 / 0.030