PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/21-19:12:50
G08     309.9          18.8               14.1 +/-    0.60      32.0 +/-    0.60  0.070 / 0.070
G10     328.8          59.4               14.5 +/-    0.57      16.6 +/-    0.57  0.080 / 0.060
G14     217.8          30.6               18.0 +/-    4.05      31.1 +/-    4.05  0.040 / 0.040
G15     46.6           10.5               15.7 +/-    2.24      43.4 +/-    2.24  0.040 / 0.040
G18     39.4           59.0               15.6 +/-    0.76      17.9 +/-    0.76  0.070 / 0.070
G21     133.3          53.4               18.5 +/-    0.67      22.5 +/-    0.67  0.060 / 0.070
G24     76.4           30.6               17.5 +/-    0.87      30.4 +/-    0.87  0.080 / 0.070
G27     274.3          37.7               15.5 +/-    1.99      23.4 +/-    1.99  0.090 / 0.060
G32     222.8          49.7               18.4 +/-    1.89      23.3 +/-    1.89  0.120 / 0.190