PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-05:58:00
G01     107.4          23.7                8.8 +/-    0.90      17.6 +/-    0.90  0.030 / 0.030
G07     102.9          59.6                7.6 +/-    0.82       8.7 +/-    0.82  0.040 / 0.030
G08     42.2           22.9                3.5 +/-    1.94       7.3 +/-    1.94  0.150 / 0.210
G09     173.5          14.2                4.3 +/-    1.42      10.9 +/-    1.42  0.180 / 0.150
G11     95.8           44.6                7.9 +/-    0.65      10.7 +/-    0.65  0.040 / 0.040
G13     310.9          28.3                3.9 +/-    0.87       7.1 +/-    0.87  0.050 / 0.040
G17     203.9          34.6                8.7 +/-    1.19      13.9 +/-    1.19  0.100 / 0.090
G19     207.2          12.8                3.9 +/-    2.01      10.3 +/-    2.01  0.090 / 0.070
G28     298.3          56.3                5.7 +/-    1.18       6.7 +/-    1.18  0.070 / 0.070
G30     359.6          75.3                7.4 +/-    1.36       7.6 +/-    1.36  0.070 / 0.060