PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-15:43:10
G01     76.3           32.8               10.1 +/-    0.59      16.8 +/-    0.59  0.050 / 0.100
G07     133.9          31.4               11.8 +/-    0.41      20.1 +/-    0.41  0.050 / 0.100
G11     57.1           34.5                7.9 +/-    0.53      12.7 +/-    0.53  0.040 / 0.080
G13     280.3          38.8               10.1 +/-    1.22      15.0 +/-    1.22  0.050 / 0.080
G15     306.7          14.2                7.9 +/-    1.85      20.1 +/-    1.85  0.050 / 0.140
G17     223.6          62.1               13.3 +/-    1.34      14.8 +/-    1.34  0.050 / 0.130
G18     52.3           20.0                8.7 +/-    1.07      19.2 +/-    1.07  0.080 / 0.110
G19     219.6          38.2               12.3 +/-    1.67      18.4 +/-    1.67  0.070 / 0.100
G28     357.8          61.4                9.3 +/-    0.77      10.5 +/-    0.77  0.030 / 0.050
G30     129.5          64.4                9.5 +/-    0.67      10.5 +/-    0.67  0.030 / 0.050