PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-15:12:50
G01     56.1           28.6                8.0 +/-    1.33      14.3 +/-    1.33  0.040 / 0.040
G07     142.8          15.9                9.7 +/-    3.41      23.6 +/-    3.41  0.040 / 0.050
G11     46.7           21.7                8.0 +/-    3.57      16.9 +/-    3.57  0.250 / 0.340
G13     257.6          34.9               11.9 +/-    1.67      18.9 +/-    1.67  0.250 / 0.390
G15     290.7          16.4                8.7 +/-    1.66      20.9 +/-    1.66  0.150 / 0.150
G17     262.5          75.9               11.5 +/-    0.56      11.8 +/-    0.56  0.160 / 0.270
G18     39.7           10.2                6.4 +/-    1.98      17.8 +/-    1.98  0.030 / 0.040
G19     235.4          54.8               11.1 +/-    2.61      13.3 +/-    2.61  0.040 / 0.030
G28     30.7           58.7               10.4 +/-    0.82      11.9 +/-    0.82  0.070 / 0.070
G30     145.5          47.7               10.2 +/-    0.71      13.3 +/-    0.71  0.100 / 0.080