PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-14:43:00
G08     314.4          15.8                4.1 +/-    2.03       9.9 +/-    2.03  0.060 / 0.070
G10     322.4          58.2                5.6 +/-    1.28       6.4 +/-    1.28  0.060 / 0.060
G14     216.1          25.7                5.3 +/-    1.57      10.2 +/-    1.57  0.040 / 0.030
G15     46.1           13.0                3.0 +/-    1.38       7.9 +/-    1.38  0.030 / 0.030
G20     81.4           11.8                5.4 +/-    2.82      14.6 +/-    2.82  0.160 / 0.420
G21     129.5          57.9                6.3 +/-    0.68       7.4 +/-    0.68  0.140 / 0.480
G24     80.4           30.4                6.0 +/-    0.56      10.3 +/-    0.56  0.030 / 0.040
G27     279.5          38.0                5.8 +/-    1.56       8.7 +/-    1.56  0.030 / 0.040
G32     219.8          48.0                7.2 +/-    0.73       9.3 +/-    0.73  0.060 / 0.090