PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-19:58:10
G07     36.6           68.2               12.6 +/-    0.79      13.5 +/-    0.79  0.030 / 0.030
G08     59.4           45.6               12.3 +/-    1.76      16.5 +/-    1.76  0.040 / 0.040
G09     180.1          48.4               15.0 +/-    0.71      19.4 +/-    0.71  0.050 / 0.060
G11     126.9          29.7               17.0 +/-    1.27      30.0 +/-    1.27  0.060 / 0.060
G18     110.1          11.4               15.6 +/-    2.31      42.2 +/-    2.31  0.110 / 0.350
G23     160.7          18.4               13.2 +/-    1.23      30.1 +/-    1.23  0.200 / 0.270
G27     40.5           17.3                9.4 +/-    2.02      22.1 +/-    2.02  0.130 / 0.100
G28     258.3          43.4               15.6 +/-    1.96      21.6 +/-    1.96  0.110 / 0.070
G30     322.6          52.8               11.7 +/-    0.69      14.3 +/-    0.69  0.050 / 0.050