PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-22:28:10
G01     81.8           32.8               11.1 +/-    1.34      18.4 +/-    1.34  0.040 / 0.080
G07     131.3          34.6               12.7 +/-    0.56      20.3 +/-    0.56  0.050 / 0.070
G11     59.9           35.8               11.6 +/-    0.65      18.1 +/-    0.65  0.040 / 0.040
G13     285.9          38.2               14.2 +/-    1.01      21.2 +/-    1.01  0.040 / 0.040
G15     309.9          12.9                9.8 +/-    2.42      25.6 +/-    2.42  0.130 / 0.210
G17     219.4          62.1               13.8 +/-    1.23      15.4 +/-    1.23  0.070 / 0.200
G18     54.5           20.4               10.8 +/-    2.88      23.5 +/-    2.88  0.150 / 0.140
G19     217.4          33.0               13.0 +/-    1.68      21.4 +/-    1.68  0.100 / 0.130
G28     354.1          61.6               10.6 +/-    0.88      11.9 +/-    0.88  0.030 / 0.030
G30     122.4          70.2               12.5 +/-    0.60      13.2 +/-    0.60  0.040 / 0.030