PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-23:27:50
G01     60.8           30.7                8.8 +/-    1.35      15.2 +/-    1.35  0.120 / 0.230
G07     141.2          18.8               11.0 +/-    1.78      25.0 +/-    1.78  0.120 / 0.210
G11     47.8           23.4                7.9 +/-    1.50      16.0 +/-    1.50  0.040 / 0.050
G13     262.9          36.2               10.5 +/-    1.49      16.3 +/-    1.49  0.040 / 0.040
G15     294.2          16.5                8.2 +/-    1.19      19.8 +/-    1.19  0.110 / 0.100
G17     259.0          77.7               11.7 +/-    0.36      11.9 +/-    0.36  0.060 / 0.120
G18     40.9           11.2                8.4 +/-    3.52      22.8 +/-    3.52  0.080 / 0.090
G19     230.9          49.5               10.9 +/-    2.70      13.8 +/-    2.70  0.060 / 0.100
G28     27.8           58.7               10.3 +/-    0.82      11.8 +/-    0.82  0.250 / 0.380
G30     143.1          53.0               10.7 +/-    0.52      13.0 +/-    0.52  0.240 / 0.350