PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-07:58:00
G01     122.8          15.0                7.2 +/-    2.45      18.0 +/-    2.45  0.030 / 0.030
G07     70.9           67.7                6.8 +/-    0.69       7.3 +/-    0.69  0.030 / 0.030
G08     46.1           33.2                4.8 +/-    0.64       7.8 +/-    0.64  0.030 / 0.030
G09     173.6          25.5                7.6 +/-    0.84      14.6 +/-    0.84  0.030 / 0.030
G11     110.5          38.3                7.5 +/-    0.38      11.3 +/-    0.38  0.090 / 0.270
G13     319.4          16.3                3.0 +/-    1.24       7.3 +/-    1.24  0.090 / 0.190
G17     199.9          21.9                7.6 +/-    1.59      16.0 +/-    1.59  0.130 / 0.230
G18     96.9           19.0                6.9 +/-    1.68      15.5 +/-    1.68  0.150 / 0.200
G28     283.2          54.7                8.1 +/-    1.01       9.7 +/-    1.01  0.100 / 0.360
G30     336.8          63.7                4.9 +/-    0.89       5.4 +/-    0.89  0.080 / 0.250