PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-18:27:50
G01     101.0          27.8               13.6 +/-    0.71      24.9 +/-    0.71  0.040 / 0.060
G07     116.9          47.5               12.4 +/-    0.30      16.1 +/-    0.30  0.040 / 0.060
G08     41.6           15.6                8.7 +/-    1.32      21.2 +/-    1.32  0.050 / 0.080
G09     174.5          10.3               13.1 +/-    1.80      36.3 +/-    1.80  0.040 / 0.090
G11     79.9           42.6               11.6 +/-    0.39      16.2 +/-    0.39  0.030 / 0.060
G13     304.6          32.6                9.1 +/-    2.28      15.2 +/-    2.28  0.040 / 0.060
G17     207.4          43.3               13.2 +/-    1.01      18.2 +/-    1.01  0.070 / 0.160
G18     72.5           24.1               10.6 +/-    1.13      21.1 +/-    1.13  0.070 / 0.170
G28     318.7          60.3               11.0 +/-    0.77      12.5 +/-    0.77  0.070 / 0.130
G30     64.5           79.0               11.8 +/-    0.90      12.0 +/-    0.90  0.080 / 0.150