PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-23:58:00
G01     320.3          14.4              -11.1 +/-   32.96     -28.1 +/-   32.96  0.110 / 0.370
G08     259.7          15.3                9.7 +/-    1.92      23.9 +/-    1.92  0.110 / 0.380
G10     73.2           55.1               11.1 +/-    0.48      13.3 +/-    0.48  0.040 / 0.050
G11     306.0          21.6                6.9 +/-    1.42      14.6 +/-    1.42  0.040 / 0.060
G14     282.6          69.1               10.7 +/-    0.52      11.3 +/-    0.52  0.160 / 0.310
G18     307.6          38.2                7.4 +/-    1.45      11.2 +/-    1.45  0.230 / 0.330
G20     101.6          32.1               12.2 +/-    0.89      20.5 +/-    0.89  0.140 / 0.330
G27     228.0          11.8               11.3 +/-    2.03      30.4 +/-    2.03  0.140 / 0.340
G31     176.7          37.6               15.6 +/-    0.80      23.6 +/-    0.80  0.110 / 0.230
G32     1.1            69.9               10.0 +/-    0.57      10.6 +/-    0.57  0.070 / 0.230