PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-07:58:10
G01     111.1          23.2                6.9 +/-    1.03      14.0 +/-    1.03  0.030 / 0.030
G07     101.0          60.2                7.3 +/-    0.57       8.3 +/-    0.57  0.030 / 0.030
G08     42.0           21.7                2.4 +/-    1.81       5.0 +/-    1.81  0.030 / 0.040
G09     172.3          13.1                5.0 +/-    2.36      12.9 +/-    2.36  0.030 / 0.040
G11     92.6           42.2                7.5 +/-    0.41      10.5 +/-    0.41  0.090 / 0.180
G13     312.4          26.3                4.0 +/-    1.24       7.6 +/-    1.24  0.100 / 0.230
G17     203.4          35.7                8.8 +/-    2.03      13.8 +/-    2.03  0.060 / 0.200
G18     82.8           23.1                4.0 +/-    0.82       8.2 +/-    0.82  0.060 / 0.200
G28     307.2          59.6                6.5 +/-    0.75       7.4 +/-    0.75  0.080 / 0.170
G30     1.1            74.8                6.9 +/-    0.69       7.1 +/-    0.69  0.090 / 0.190