PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-22:28:00
G01     91.5           31.2               10.3 +/-    0.82      17.7 +/-    0.82  0.060 / 0.060
G07     125.0          41.9               11.2 +/-    0.85      15.8 +/-    0.85  0.060 / 0.060
G11     68.4           39.8                8.9 +/-    0.80      12.9 +/-    0.80  0.060 / 0.140
G13     295.7          36.3                9.3 +/-    1.37      14.4 +/-    1.37  0.070 / 0.150
G17     212.3          54.0               12.5 +/-    2.16      15.0 +/-    2.16  0.040 / 0.040
G18     62.1           22.6                7.8 +/-    1.57      16.1 +/-    1.57  0.040 / 0.040
G19     213.5          25.5               12.8 +/-    3.32      24.7 +/-    3.32  0.070 / 0.120
G28     338.1          61.6                8.8 +/-    0.72       9.9 +/-    0.72  0.080 / 0.110
G30     100.1          76.8                9.3 +/-    0.45       9.6 +/-    0.45  0.030 / 0.070