PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/24-20:27:40
G01     123.1          14.2               13.8 +/-    1.87      34.9 +/-    1.87  0.030 / 0.050
G07     76.9           64.9               12.2 +/-    0.47      13.3 +/-    0.47  0.030 / 0.040
G08     46.9           34.6               10.1 +/-    1.00      16.2 +/-    1.00  0.210 / 0.320
G09     178.1          32.4               12.1 +/-    1.11      20.1 +/-    1.11  0.200 / 0.420
G11     111.4          38.2               13.9 +/-    0.76      20.8 +/-    0.76  0.120 / 0.080
G13     319.5          15.9                8.9 +/-    3.78      21.8 +/-    3.78  0.080 / 0.080
G17     199.6          20.4               13.9 +/-    1.40      30.2 +/-    1.40  0.090 / 0.090
G18     96.6           18.6               11.1 +/-    1.52      25.2 +/-    1.52  0.080 / 0.080
G28     278.4          52.2               11.9 +/-    2.58      14.6 +/-    2.58  0.040 / 0.030
G30     339.5          64.9               11.1 +/-    0.73      12.1 +/-    0.73  0.030 / 0.030