PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-23:57:40
G08     314.0          16.7                8.8 +/-    1.57      21.0 +/-    1.57  0.030 / 0.040
G10     317.4          57.1               10.0 +/-    0.89      11.7 +/-    0.89  0.030 / 0.030
G14     214.7          25.8               10.9 +/-    1.31      20.8 +/-    1.31  0.040 / 0.040
G15     45.8           17.4                9.6 +/-    2.72      22.5 +/-    2.72  0.040 / 0.040
G18     25.4           62.4               12.3 +/-    1.54      13.7 +/-    1.54  0.090 / 0.090
G21     125.7          62.5               12.1 +/-    0.84      13.5 +/-    0.84  0.060 / 0.090
G24     83.9           30.2               11.7 +/-    1.18      20.3 +/-    1.18  0.080 / 0.060
G27     282.2          38.1               12.4 +/-    0.74      18.6 +/-    0.74  0.090 / 0.080
G32     218.3          42.8               13.1 +/-    1.36      18.2 +/-    1.36  0.090 / 0.170