PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-22:58:00
G01     77.0           33.0                8.6 +/-    0.35      14.2 +/-    0.35  0.060 / 0.130
G07     133.9          31.3               10.7 +/-    1.17      18.2 +/-    1.17  0.060 / 0.120
G11     56.5           33.4                6.5 +/-    0.36      10.7 +/-    0.36  0.060 / 0.070
G13     280.8          38.5                8.5 +/-    0.97      12.7 +/-    0.97  0.050 / 0.060
G15     306.7          14.2                6.1 +/-    1.43      15.5 +/-    1.43  0.040 / 0.030
G17     224.2          66.1                9.9 +/-    1.45      10.7 +/-    1.45  0.030 / 0.030
G18     50.9           18.7                7.0 +/-    1.20      15.8 +/-    1.20  0.060 / 0.120
G19     219.8          36.6               10.4 +/-    2.16      16.0 +/-    2.16  0.070 / 0.080
G28     2.0            61.2                7.6 +/-    0.64       8.6 +/-    0.64  0.070 / 0.100
G30     128.9          66.7                8.8 +/-    0.52       9.5 +/-    0.52  0.080 / 0.120