PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-07:57:50
G01     113.2          21.9                6.5 +/-    1.09      13.6 +/-    1.09  0.040 / 0.030
G07     96.8           61.7                6.4 +/-    0.52       7.1 +/-    0.52  0.030 / 0.020
G08     42.4           23.6                2.1 +/-    0.94       4.3 +/-    0.94  0.030 / 0.040
G09     172.7          15.2                5.4 +/-    1.73      13.5 +/-    1.73  0.030 / 0.040
G11     95.9           41.9                6.7 +/-    0.66       9.4 +/-    0.66  0.100 / 0.210
G13     313.9          24.7                3.6 +/-    1.56       7.0 +/-    1.56  0.100 / 0.190
G17     202.6          33.3                6.3 +/-    1.61      10.3 +/-    1.61  0.080 / 0.230
G18     85.3           22.6                3.8 +/-    0.76       7.9 +/-    0.76  0.080 / 0.200
G28     302.8          59.0                5.1 +/-    0.57       5.8 +/-    0.57  0.080 / 0.210
G30     355.2          73.0                5.7 +/-    1.01       5.9 +/-    1.01  0.060 / 0.200