PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-12:58:10
G01     38.6           11.5                4.7 +/-    3.08      12.7 +/-    3.08  0.090 / 0.120
G02     199.8          13.1                4.3 +/-    2.09      11.2 +/-    2.09  0.110 / 0.130
G06     174.7          44.9                8.2 +/-    0.76      11.1 +/-    0.76  0.080 / 0.180
G13     234.5          18.1                6.2 +/-    1.38      14.3 +/-    1.38  0.070 / 0.120
G15     266.5          10.3                5.6 +/-    2.72      15.7 +/-    2.72  0.060 / 0.280
G17     16.9           63.8                4.5 +/-    0.54       5.0 +/-    0.54  0.060 / 0.260
G19     304.1          72.1                5.0 +/-    0.80       5.3 +/-    0.80  0.060 / 0.060
G24     315.0          22.7                1.7 +/-    1.30       3.4 +/-    1.30  0.050 / 0.050
G28     80.1           43.3                3.6 +/-    0.70       5.0 +/-    0.70  0.030 / 0.030
G30     156.2          22.5                6.1 +/-    1.70      12.7 +/-    1.70  0.030 / 0.030