PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-01:27:40
G10     250.2          26.4               13.9 +/-    0.92      26.4 +/-    0.92  0.120 / 0.610
G13     53.9           30.1                9.7 +/-    1.61      16.9 +/-    1.61  0.160 / 0.840
G15     90.3           58.5               11.3 +/-    0.89      13.0 +/-    0.89  0.070 / 0.130
G16     294.8          15.9                7.9 +/-    2.59      19.2 +/-    2.59  0.070 / 0.160
G20     263.7          42.7               13.2 +/-    0.86      18.4 +/-    0.86  0.050 / 0.050
G21     332.1          59.3               10.1 +/-    0.77      11.5 +/-    0.77  0.040 / 0.050
G26     266.7          15.8               13.5 +/-    2.38      32.8 +/-    2.38  0.030 / 0.060
G29     165.2          51.4               11.4 +/-    0.40      14.2 +/-    0.40  0.040 / 0.060