PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-23:57:50
G08     316.6          14.8               22.2 +/-    3.10      55.6 +/-    3.10  0.030 / 0.040
G10     311.2          55.5               24.0 +/-    1.48      28.5 +/-    1.48  0.040 / 0.040
G14     213.2          22.4               25.6 +/-    2.27      53.2 +/-    2.27  0.080 / 0.060
G15     45.6           20.6               21.0 +/-    2.05      45.6 +/-    2.05  0.070 / 0.040
G18     18.1           63.7               24.2 +/-    0.61      26.7 +/-    0.61  0.120 / 0.160
G20     78.5           11.3               20.4 +/-    2.75      55.4 +/-    2.75  0.290 / 0.250
G21     120.1          65.9               24.9 +/-    0.54      27.0 +/-    0.54  0.060 / 0.080
G24     88.3           29.6               24.9 +/-    1.63      43.9 +/-    1.63  0.060 / 0.060
G27     287.0          37.8               21.8 +/-    0.90      32.8 +/-    0.90  0.140 / 0.330
G32     216.0          39.3               25.1 +/-    1.88      36.9 +/-    1.88  0.160 / 0.400