PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-05:12:40
G01     78.3           33.2                6.7 +/-    0.66      11.1 +/-    0.66  0.030 / 0.040
G07     133.4          34.6                8.8 +/-    0.87      14.1 +/-    0.87  0.030 / 0.040
G11     57.1           33.6                4.9 +/-    0.91       8.0 +/-    0.91  0.040 / 0.030
G13     282.1          38.2                5.2 +/-    1.35       7.8 +/-    1.35  0.030 / 0.030
G15     309.2          12.7                2.6 +/-    1.43       6.7 +/-    1.43  0.070 / 0.100
G17     223.5          66.2                9.2 +/-    0.48      10.0 +/-    0.48  0.060 / 0.090
G19     219.6          33.9                5.4 +/-    0.92       8.8 +/-    0.92  0.040 / 0.060
G28     3.8            61.1                5.9 +/-    0.49       6.6 +/-    0.49  0.040 / 0.060
G30     127.0          69.5                7.9 +/-    0.42       8.4 +/-    0.42  0.040 / 0.080