PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-04:12:40
G01     67.3           31.4                6.0 +/-    0.53      10.2 +/-    0.53  0.030 / 0.040
G07     137.4          30.8                8.0 +/-    1.67      13.7 +/-    1.67  0.040 / 0.030
G11     55.0           34.5                4.2 +/-    0.66       6.7 +/-    0.66  0.050 / 0.110
G13     271.8          38.7                6.8 +/-    0.78      10.1 +/-    0.78  0.060 / 0.090
G15     298.9          16.8                3.1 +/-    1.20       7.3 +/-    1.20  0.060 / 0.120
G17     233.0          70.9                6.9 +/-    0.65       7.3 +/-    0.65  0.060 / 0.110
G19     223.6          45.2                7.2 +/-    2.00       9.7 +/-    2.00  0.060 / 0.120
G28     2.6            61.4                3.9 +/-    0.80       4.4 +/-    0.80  0.050 / 0.130
G30     137.1          65.7                7.8 +/-    1.23       8.5 +/-    1.23  0.050 / 0.060