PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-04:57:50
G01     99.9           28.7                7.0 +/-    1.18      12.6 +/-    1.18  0.060 / 0.110
G07     117.1          50.8                7.9 +/-    0.82       9.9 +/-    0.82  0.050 / 0.120
G08     41.5           12.2                2.8 +/-    2.21       7.3 +/-    2.21  0.030 / 0.040
G11     77.2           41.7                5.9 +/-    1.43       8.4 +/-    1.43  0.030 / 0.040
G13     303.4          33.0                3.5 +/-    2.64       5.7 +/-    2.64  0.030 / 0.020
G17     207.9          47.6                7.2 +/-    0.69       9.4 +/-    0.69  0.030 / 0.020
G19     211.2          17.0                6.7 +/-    1.95      16.0 +/-    1.95  0.050 / 0.040
G28     327.4          61.4                5.0 +/-    0.58       5.6 +/-    0.58  0.030 / 0.040
G30     52.3           80.5                6.6 +/-    1.18       6.7 +/-    1.18  0.040 / 0.040