PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-21:58:10
G01     73.2           32.9               11.3 +/-    1.16      18.7 +/-    1.16  0.080 / 0.100
G07     135.8          28.0               14.9 +/-    1.16      27.3 +/-    1.16  0.110 / 0.110
G11     54.2           31.5                9.9 +/-    1.33      16.8 +/-    1.33  0.050 / 0.100
G13     276.8          38.5               13.3 +/-    1.28      19.9 +/-    1.28  0.050 / 0.110
G15     304.0          15.0                8.3 +/-    2.16      20.5 +/-    2.16  0.050 / 0.050
G17     228.7          68.5               15.1 +/-    0.89      16.1 +/-    0.89  0.060 / 0.050
G18     48.7           17.6                8.9 +/-    2.71      20.8 +/-    2.71  0.080 / 0.090
G19     221.8          39.7               16.7 +/-    1.77      24.4 +/-    1.77  0.100 / 0.090
G28     7.2            60.9               11.6 +/-    1.30      13.1 +/-    1.30  0.030 / 0.030
G30     133.0          63.3               15.1 +/-    0.49      16.7 +/-    0.49  0.030 / 0.030