PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-04:43:10
G08     266.6          18.6                6.2 +/-    1.70      14.1 +/-    1.70  0.090 / 0.230
G10     57.4           59.6                2.9 +/-    0.96       3.4 +/-    0.96  0.100 / 0.230
G11     310.6          18.7                5.6 +/-    2.87      12.8 +/-    2.87  0.090 / 0.130
G14     267.3          67.1                5.0 +/-    1.13       5.4 +/-    1.13  0.120 / 0.130
G18     89.7           38.6                5.4 +/-    0.62       8.0 +/-    0.62  0.040 / 0.020
G21     154.0          16.5                4.3 +/-    1.68      10.3 +/-    1.68  0.030 / 0.010
G24     40.7           12.2                3.0 +/-    1.72       7.8 +/-    1.72  0.130 / 0.080
G27     231.2          16.2                9.1 +/-    2.82      21.9 +/-    2.82  0.090 / 0.070
G31     178.5          29.2                8.0 +/-    1.84      14.3 +/-    1.84  0.080 / 0.070
G32     331.3          74.6                5.5 +/-    0.49       5.7 +/-    0.49  0.070 / 0.050