PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-18:12:50
G01     108.0          24.4               12.2 +/-    2.01      24.2 +/-    2.01  0.040 / 0.060
G07     108.6          53.0               11.5 +/-    0.46      14.0 +/-    0.46  0.040 / 0.070
G08     41.9           21.4                8.6 +/-    0.83      18.2 +/-    0.83  0.040 / 0.090
G09     175.9          16.4               12.3 +/-    2.26      29.7 +/-    2.26  0.040 / 0.080
G11     89.5           43.0               11.5 +/-    0.66      16.0 +/-    0.66  0.030 / 0.050
G13     310.4          28.5                9.1 +/-    1.05      16.4 +/-    1.05  0.020 / 0.040
G17     204.4          36.2               11.6 +/-    2.37      17.9 +/-    2.37  0.080 / 0.230
G18     80.0           23.6               10.5 +/-    0.80      21.1 +/-    0.80  0.070 / 0.170
G28     305.7          58.6               10.3 +/-    0.63      11.9 +/-    0.63  0.060 / 0.200
G30     27.3           77.9               11.7 +/-    0.61      11.9 +/-    0.61  0.080 / 0.190